/*!
 * Vue.js v2.3.0
 * (c) 2014-2017 Evan You
 * Released under the MIT License.
 */
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global.Vue = factory());
 }(this, (function () { 'use strict';
          
/*  */
          
          // these helpers produces better vm code in JS engines due to their
          // explicitness and function inlining
          function isUndef (v) {
          return v === undefined || v === null
          }
          
          function isDef (v) {
          return v !== undefined && v !== null
          }
          
          function isTrue (v) {
          return v === true
          }
          
/**
 * Check if value is primitive
 */
          function isPrimitive (value) {
          return typeof value === 'string' || typeof value === 'number'
          }
          
/**
 * Quick object check - this is primarily used to tell
 * Objects from primitive values when we know the value
 * is a JSON-compliant type.
 */
          function isObject (obj) {
          return obj !== null && typeof obj === 'object'
          }
          
          var toString = Object.prototype.toString;
          
/**
 * Strict object type check. Only returns true
 * for plain JavaScript objects.
 */
          function isPlainObject (obj) {
          return toString.call(obj) === '[object Object]'
          }
          
          function isRegExp (v) {
          return toString.call(v) === '[object RegExp]'
          }
          
/**
 * Convert a value to a string that is actually rendered.
 */
          function _toString (val) {
          return val == null
          ? ''
          : typeof val === 'object'
          ? JSON.stringify(val, null, 2)
          : String(val)
          }
          
/**
 * Convert a input value to a number for persistence.
 * If the conversion fails, return original string.
 */
          function toNumber (val) {
          var n = parseFloat(val);
          return isNaN(n) ? val : n
          }
          
/**
 * Make a map and return a function for checking if a key
 * is in that map.
 */
          function makeMap (
                            str,
                            expectsLowerCase
                            ) {
          var map = Object.create(null);
          var list = str.split(',');
          for (var i = 0; i < list.length; i++) {
          map[list[i]] = true;
          }
          return expectsLowerCase
          ? function (val) { return map[val.toLowerCase()]; }
          : function (val) { return map[val]; }
          }
          
/**
 * Check if a tag is a built-in tag.
 */
          var isBuiltInTag = makeMap('slot,component', true);
          
/**
 * Remove an item from an array
 */
          function remove (arr, item) {
          if (arr.length) {
          var index = arr.indexOf(item);
          if (index > -1) {
          return arr.splice(index, 1)
          }
          }
          }
          
/**
 * Check whether the object has the property.
 */
          var hasOwnProperty = Object.prototype.hasOwnProperty;
          function hasOwn (obj, key) {
          return hasOwnProperty.call(obj, key)
          }
          
/**
 * Create a cached version of a pure function.
 */
          function cached (fn) {
          var cache = Object.create(null);
          return (function cachedFn (str) {
                  var hit = cache[str];
                  return hit || (cache[str] = fn(str))
                  })
          }
          
/**
 * Camelize a hyphen-delimited string.
 */
          var camelizeRE = /-(\w)/g;
          var camelize = cached(function (str) {
                                return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
                                });
          
/**
 * Capitalize a string.
 */
          var capitalize = cached(function (str) {
                                  return str.charAt(0).toUpperCase() + str.slice(1)
                                  });
          
/**
 * Hyphenate a camelCase string.
 */
          var hyphenateRE = /([^-])([A-Z])/g;
          var hyphenate = cached(function (str) {
                                 return str
                                 .replace(hyphenateRE, '$1-$2')
                                 .replace(hyphenateRE, '$1-$2')
                                 .toLowerCase()
                                 });
          
/**
 * Simple bind, faster than native
 */
          function bind (fn, ctx) {
          function boundFn (a) {
          var l = arguments.length;
          return l
          ? l > 1
          ? fn.apply(ctx, arguments)
          : fn.call(ctx, a)
          : fn.call(ctx)
          }
          // record original fn length
          boundFn._length = fn.length;
          return boundFn
          }
          
/**
 * Convert an Array-like object to a real Array.
 */
          function toArray (list, start) {
          start = start || 0;
          var i = list.length - start;
          var ret = new Array(i);
          while (i--) {
          ret[i] = list[i + start];
          }
          return ret
          }
          
/**
 * Mix properties into target object.
 */
          function extend (to, _from) {
          for (var key in _from) {
          to[key] = _from[key];
          }
          return to
          }
          
/**
 * Merge an Array of Objects into a single Object.
 */
          function toObject (arr) {
          var res = {};
          for (var i = 0; i < arr.length; i++) {
          if (arr[i]) {
          extend(res, arr[i]);
          }
          }
          return res
          }
          
/**
 * Perform no operation.
 */
          function noop () {}
          
/**
 * Always return false.
 */
          var no = function () { return false; };
          
/**
 * Return same value
 */
          var identity = function (_) { return _; };
          
/**
 * Generate a static keys string from compiler modules.
 */
          function genStaticKeys (modules) {
          return modules.reduce(function (keys, m) {
                                return keys.concat(m.staticKeys || [])
                                }, []).join(',')
          }
          
/**
 * Check if two values are loosely equal - that is,
 * if they are plain objects, do they have the same shape?
 */
          function looseEqual (a, b) {
          var isObjectA = isObject(a);
          var isObjectB = isObject(b);
          if (isObjectA && isObjectB) {
          try {
          return JSON.stringify(a) === JSON.stringify(b)
          } catch (e) {
          // possible circular reference
          return a === b
          }
          } else if (!isObjectA && !isObjectB) {
          return String(a) === String(b)
          } else {
          return false
          }
          }
          
          function looseIndexOf (arr, val) {
          for (var i = 0; i < arr.length; i++) {
          if (looseEqual(arr[i], val)) { return i }
          }
          return -1
          }
          
/**
 * Ensure a function is called only once.
 */
          function once (fn) {
          var called = false;
          return function () {
          if (!called) {
          called = true;
          fn.apply(this, arguments);
          }
          }
          }
          
          var SSR_ATTR = 'data-server-rendered';
          
          var ASSET_TYPES = [
                             'component',
                             'directive',
                             'filter'
                             ];
          
          var LIFECYCLE_HOOKS = [
                                 'beforeCreate',
                                 'created',
                                 'beforeMount',
                                 'mounted',
                                 'beforeUpdate',
                                 'updated',
                                 'beforeDestroy',
                                 'destroyed',
                                 'activated',
                                 'deactivated'
                                 ];
          
/*  */
          
          var config = ({
                        /**
                         * Option merge strategies (used in core/util/options)
                         */
                        optionMergeStrategies: Object.create(null),
                        
                        /**
                         * Whether to suppress warnings.
                         */
                        silent: false,
                        
                        /**
                         * Show production mode tip message on boot?
                         */
                        productionTip: "development" !== 'production',
                        
                        /**
                         * Whether to enable devtools
                         */
                        devtools: "development" !== 'production',
                        
                        /**
                         * Whether to record perf
                         */
                        performance: false,
                        
                        /**
                         * Error handler for watcher errors
                         */
                        errorHandler: null,
                        
                        /**
                         * Ignore certain custom elements
                         */
                        ignoredElements: [],
                        
                        /**
                         * Custom user key aliases for v-on
                         */
                        keyCodes: Object.create(null),
                        
                        /**
                         * Check if a tag is reserved so that it cannot be registered as a
                         * component. This is platform-dependent and may be overwritten.
                         */
                        isReservedTag: no,
                        
                        /**
                         * Check if an attribute is reserved so that it cannot be used as a component
                         * prop. This is platform-dependent and may be overwritten.
                         */
                        isReservedAttr: no,
                        
                        /**
                         * Check if a tag is an unknown element.
                         * Platform-dependent.
                         */
                        isUnknownElement: no,
                        
                        /**
                         * Get the namespace of an element
                         */
                        getTagNamespace: noop,
                        
                        /**
                         * Parse the real tag name for the specific platform.
                         */
                        parsePlatformTagName: identity,
                        
                        /**
                         * Check if an attribute must be bound using property, e.g. value
                         * Platform-dependent.
                         */
                        mustUseProp: no,
                        
                        /**
                         * Exposed for legacy reasons
                         */
                        _lifecycleHooks: LIFECYCLE_HOOKS
                        });
          
/*  */
          
          var emptyObject = Object.freeze({});
          
/**
 * Check if a string starts with $ or _
 */
          function isReserved (str) {
          var c = (str + '').charCodeAt(0);
          return c === 0x24 || c === 0x5F
          }
          
/**
 * Define a property.
 */
          function def (obj, key, val, enumerable) {
          Object.defineProperty(obj, key, {
                                value: val,
                                enumerable: !!enumerable,
                                writable: true,
                                configurable: true
                                });
          }
          
/**
 * Parse simple path.
 */
          var bailRE = /[^\w.$]/;
          function parsePath (path) {
          if (bailRE.test(path)) {
          return
          }
          var segments = path.split('.');
          return function (obj) {
          for (var i = 0; i < segments.length; i++) {
          if (!obj) { return }
          obj = obj[segments[i]];
          }
          return obj
          }
          }
          
          var warn = noop;
          var tip = noop;
          var formatComponentName;
          
          {
          var hasConsole = typeof console !== 'undefined';
          var classifyRE = /(?:^|[-_])(\w)/g;
          var classify = function (str) { return str
          .replace(classifyRE, function (c) { return c.toUpperCase(); })
          .replace(/[-_]/g, ''); };
          
          warn = function (msg, vm) {
          if (hasConsole && (!config.silent)) {
          console.error("[Vue warn]: " + msg + (
                                                vm ? generateComponentTrace(vm) : ''
                                                ));
          }
          };
          
          tip = function (msg, vm) {
          if (hasConsole && (!config.silent)) {
          console.warn("[Vue tip]: " + msg + (
                                              vm ? generateComponentTrace(vm) : ''
                                              ));
          }
          };
          
          formatComponentName = function (vm, includeFile) {
          if (vm.$root === vm) {
          return '<Root>'
          }
          var name = typeof vm === 'string'
          ? vm
          : typeof vm === 'function' && vm.options
          ? vm.options.name
          : vm._isVue
          ? vm.$options.name || vm.$options._componentTag
          : vm.name;
          
          var file = vm._isVue && vm.$options.__file;
          if (!name && file) {
          var match = file.match(/([^/\\]+)\.vue$/);
          name = match && match[1];
          }
          
          return (
                  (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
                  (file && includeFile !== false ? (" at " + file) : '')
                  )
          };
          
          var repeat = function (str, n) {
          var res = '';
          while (n) {
          if (n % 2 === 1) { res += str; }
          if (n > 1) { str += str; }
          n >>= 1;
          }
          return res
          };
          
          var generateComponentTrace = function (vm) {
          if (vm._isVue && vm.$parent) {
          var tree = [];
          var currentRecursiveSequence = 0;
          while (vm) {
          if (tree.length > 0) {
          var last = tree[tree.length - 1];
          if (last.constructor === vm.constructor) {
          currentRecursiveSequence++;
          vm = vm.$parent;
          continue
          } else if (currentRecursiveSequence > 0) {
          tree[tree.length - 1] = [last, currentRecursiveSequence];
          currentRecursiveSequence = 0;
          }
          }
          tree.push(vm);
          vm = vm.$parent;
          }
          return '\n\nfound in\n\n' + tree
          .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
                                                                                               ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
                                                                                               : formatComponentName(vm))); })
          .join('\n')
          } else {
          return ("\n\n(found in " + (formatComponentName(vm)) + ")")
          }
          };
          }
          
          function handleError (err, vm, info) {
          if (config.errorHandler) {
          config.errorHandler.call(null, err, vm, info);
          } else {
          {
          warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
          }
          /* istanbul ignore else */
          if (inBrowser && typeof console !== 'undefined') {
          console.error(err);
          } else {
          throw err
          }
          }
          }
          
/*  */
/* globals MutationObserver */
          
          // can we use __proto__?
          var hasProto = '__proto__' in {};
          
          // Browser environment sniffing
          var inBrowser = typeof window !== 'undefined';
          var UA = inBrowser && window.navigator.userAgent.toLowerCase();
          var isIE = UA && /msie|trident/.test(UA);
          var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
          var isEdge = UA && UA.indexOf('edge/') > 0;
          var isAndroid = UA && UA.indexOf('android') > 0;
          var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
          var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
          
          var supportsPassive = false;
          if (inBrowser) {
          try {
          var opts = {};
          Object.defineProperty(opts, 'passive', ({
                                                  get: function get () {
                                                  /* istanbul ignore next */
                                                  supportsPassive = true;
                                                  }
                                                  } )); // https://github.com/facebook/flow/issues/285
          window.addEventListener('test-passive', null, opts);
          } catch (e) {}
          }
          
          // this needs to be lazy-evaled because vue may be required before
          // vue-server-renderer can set VUE_ENV
          var _isServer;
          var isServerRendering = function () {
          if (_isServer === undefined) {
          /* istanbul ignore if */
          if (!inBrowser && typeof global !== 'undefined') {
          // detect presence of vue-server-renderer and avoid
          // Webpack shimming the process
          _isServer = global['process'].env.VUE_ENV === 'server';
          } else {
          _isServer = false;
          }
          }
          return _isServer
          };
          
          // detect devtools
          var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
          
/* istanbul ignore next */
          function isNative (Ctor) {
          return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
          }
          
          var hasSymbol =
          typeof Symbol !== 'undefined' && isNative(Symbol) &&
          typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
          
/**
 * Defer a task to execute it asynchronously.
 */
          var nextTick = (function () {
                          var callbacks = [];
                          var pending = false;
                          var timerFunc;
                          
                          function nextTickHandler () {
                          pending = false;
                          var copies = callbacks.slice(0);
                          callbacks.length = 0;
                          for (var i = 0; i < copies.length; i++) {
                          copies[i]();
                          }
                          }
                          
                          // the nextTick behavior leverages the microtask queue, which can be accessed
                          // via either native Promise.then or MutationObserver.
                          // MutationObserver has wider support, however it is seriously bugged in
                          // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
                          // completely stops working after triggering a few times... so, if native
                          // Promise is available, we will use it:
                          /* istanbul ignore if */
                          if (typeof Promise !== 'undefined' && isNative(Promise)) {
                          var p = Promise.resolve();
                          var logError = function (err) { console.error(err); };
                          timerFunc = function () {
                          p.then(nextTickHandler).catch(logError);
                          // in problematic UIWebViews, Promise.then doesn't completely break, but
                          // it can get stuck in a weird state where callbacks are pushed into the
                          // microtask queue but the queue isn't being flushed, until the browser
                          // needs to do some other work, e.g. handle a timer. Therefore we can
                          // "force" the microtask queue to be flushed by adding an empty timer.
                          if (isIOS) { setTimeout(noop); }
                          };
                          } else if (typeof MutationObserver !== 'undefined' && (
                                                                                 isNative(MutationObserver) ||
                                                                                 // PhantomJS and iOS 7.x
                                                                                 MutationObserver.toString() === '[object MutationObserverConstructor]'
                                                                                 )) {
                          // use MutationObserver where native Promise is not available,
                          // e.g. PhantomJS IE11, iOS7, Android 4.4
                          var counter = 1;
                          var observer = new MutationObserver(nextTickHandler);
                          var textNode = document.createTextNode(String(counter));
                          observer.observe(textNode, {
                                           characterData: true
                                           });
                          timerFunc = function () {
                          counter = (counter + 1) % 2;
                          textNode.data = String(counter);
                          };
                          } else {
                          // fallback to setTimeout
                          /* istanbul ignore next */
                          timerFunc = function () {
                          setTimeout(nextTickHandler, 0);
                          };
                          }
                          
                          return function queueNextTick (cb, ctx) {
                          var _resolve;
                          callbacks.push(function () {
                                         if (cb) {
                                         try {
                                         cb.call(ctx);
                                         } catch (e) {
                                         handleError(e, ctx, 'nextTick');
                                         }
                                         } else if (_resolve) {
                                         _resolve(ctx);
                                         }
                                         });
                          if (!pending) {
                          pending = true;
                          timerFunc();
                          }
                          if (!cb && typeof Promise !== 'undefined') {
                          return new Promise(function (resolve, reject) {
                                             _resolve = resolve;
                                             })
                          }
                          }
                          })();
          
          var _Set;
/* istanbul ignore if */
          if (typeof Set !== 'undefined' && isNative(Set)) {
          // use native Set when available.
          _Set = Set;
          } else {
          // a non-standard Set polyfill that only works with primitive keys.
          _Set = (function () {
                  function Set () {
                  this.set = Object.create(null);
                  }
                  Set.prototype.has = function has (key) {
                  return this.set[key] === true
                  };
                  Set.prototype.add = function add (key) {
                  this.set[key] = true;
                  };
                  Set.prototype.clear = function clear () {
                  this.set = Object.create(null);
                  };
                  
                  return Set;
                  }());
          }
          
/*  */
          
          
          var uid = 0;
          
/**
 * A dep is an observable that can have multiple
 * directives subscribing to it.
 */
          var Dep = function Dep () {
          this.id = uid++;
          this.subs = [];
          };
          
          Dep.prototype.addSub = function addSub (sub) {
          this.subs.push(sub);
          };
          
          Dep.prototype.removeSub = function removeSub (sub) {
          remove(this.subs, sub);
          };
          
          Dep.prototype.depend = function depend () {
          if (Dep.target) {
          Dep.target.addDep(this);
          }
          };
          
          Dep.prototype.notify = function notify () {
          // stabilize the subscriber list first
          var subs = this.subs.slice();
          for (var i = 0, l = subs.length; i < l; i++) {
          subs[i].update();
          }
          };
          
          // the current target watcher being evaluated.
          // this is globally unique because there could be only one
          // watcher being evaluated at any time.
          Dep.target = null;
          var targetStack = [];
          
          function pushTarget (_target) {
          if (Dep.target) { targetStack.push(Dep.target); }
          Dep.target = _target;
          }
          
          function popTarget () {
          Dep.target = targetStack.pop();
          }
          
/*
 * not type checking this file because flow doesn't play well with
 * dynamically accessing methods on Array prototype
 */
          
          var arrayProto = Array.prototype;
          var arrayMethods = Object.create(arrayProto);[
                                                        'push',
                                                        'pop',
                                                        'shift',
                                                        'unshift',
                                                        'splice',
                                                        'sort',
                                                        'reverse'
                                                        ]
          .forEach(function (method) {
                   // cache original method
                   var original = arrayProto[method];
                   def(arrayMethods, method, function mutator () {
                       var arguments$1 = arguments;
                       
                       // avoid leaking arguments:
                       // http://jsperf.com/closure-with-arguments
                       var i = arguments.length;
                       var args = new Array(i);
                       while (i--) {
                       args[i] = arguments$1[i];
                       }
                       var result = original.apply(this, args);
                       var ob = this.__ob__;
                       var inserted;
                       switch (method) {
                       case 'push':
                       inserted = args;
                       break
                       case 'unshift':
                       inserted = args;
                       break
                       case 'splice':
                       inserted = args.slice(2);
                       break
                       }
                       if (inserted) { ob.observeArray(inserted); }
                       // notify change
                       ob.dep.notify();
                       return result
                       });
                   });
          
/*  */
          
          var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
          
/**
 * By default, when a reactive property is set, the new value is
 * also converted to become reactive. However when passing down props,
 * we don't want to force conversion because the value may be a nested value
 * under a frozen data structure. Converting it would defeat the optimization.
 */
          var observerState = {
          shouldConvert: true,
          isSettingProps: false
          };
          
/**
 * Observer class that are attached to each observed
 * object. Once attached, the observer converts target
 * object's property keys into getter/setters that
 * collect dependencies and dispatches updates.
 */
          var Observer = function Observer (value) {
          this.value = value;
          this.dep = new Dep();
          this.vmCount = 0;
          def(value, '__ob__', this);
          if (Array.isArray(value)) {
          var augment = hasProto
          ? protoAugment
          : copyAugment;
          augment(value, arrayMethods, arrayKeys);
          this.observeArray(value);
          } else {
          this.walk(value);
          }
          };
          
/**
 * Walk through each property and convert them into
 * getter/setters. This method should only be called when
 * value type is Object.
 */
          Observer.prototype.walk = function walk (obj) {
          var keys = Object.keys(obj);
          for (var i = 0; i < keys.length; i++) {
          defineReactive$$1(obj, keys[i], obj[keys[i]]);
          }
          };
          
/**
 * Observe a list of Array items.
 */
          Observer.prototype.observeArray = function observeArray (items) {
          for (var i = 0, l = items.length; i < l; i++) {
          observe(items[i]);
          }
          };
          
          // helpers
          
/**
 * Augment an target Object or Array by intercepting
 * the prototype chain using __proto__
 */
          function protoAugment (target, src) {
          /* eslint-disable no-proto */
          target.__proto__ = src;
          /* eslint-enable no-proto */
          }
          
/**
 * Augment an target Object or Array by defining
 * hidden properties.
 */
/* istanbul ignore next */
          function copyAugment (target, src, keys) {
          for (var i = 0, l = keys.length; i < l; i++) {
          var key = keys[i];
          def(target, key, src[key]);
          }
          }
          
/**
 * Attempt to create an observer instance for a value,
 * returns the new observer if successfully observed,
 * or the existing observer if the value already has one.
 */
          function observe (value, asRootData) {
          if (!isObject(value)) {
          return
          }
          var ob;
          if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
          ob = value.__ob__;
          } else if (
                     observerState.shouldConvert &&
                     !isServerRendering() &&
                     (Array.isArray(value) || isPlainObject(value)) &&
                     Object.isExtensible(value) &&
                     !value._isVue
                     ) {
          ob = new Observer(value);
          }
          if (asRootData && ob) {
          ob.vmCount++;
          }
          return ob
          }
          
/**
 * Define a reactive property on an Object.
 */
          function defineReactive$$1 (
                                      obj,
                                      key,
                                      val,
                                      customSetter
                                      ) {
          var dep = new Dep();
          
          var property = Object.getOwnPropertyDescriptor(obj, key);
          if (property && property.configurable === false) {
          return
          }
          
          // cater for pre-defined getter/setters
          var getter = property && property.get;
          var setter = property && property.set;
          
          var childOb = observe(val);
          Object.defineProperty(obj, key, {
                                enumerable: true,
                                configurable: true,
                                get: function reactiveGetter () {
                                var value = getter ? getter.call(obj) : val;
                                if (Dep.target) {
                                dep.depend();
                                if (childOb) {
                                childOb.dep.depend();
                                }
                                if (Array.isArray(value)) {
                                dependArray(value);
                                }
                                }
                                return value
                                },
                                set: function reactiveSetter (newVal) {
                                var value = getter ? getter.call(obj) : val;
                                /* eslint-disable no-self-compare */
                                if (newVal === value || (newVal !== newVal && value !== value)) {
                                return
                                }
                                /* eslint-enable no-self-compare */
                                if ("development" !== 'production' && customSetter) {
                                customSetter();
                                }
                                if (setter) {
                                setter.call(obj, newVal);
                                } else {
                                val = newVal;
                                }
                                childOb = observe(newVal);
                                dep.notify();
                                }
                                });
          }
          
/**
 * Set a property on an object. Adds the new property and
 * triggers change notification if the property doesn't
 * already exist.
 */
          function set (target, key, val) {
          if (Array.isArray(target) && typeof key === 'number') {
          target.length = Math.max(target.length, key);
          target.splice(key, 1, val);
          return val
          }
          if (hasOwn(target, key)) {
          target[key] = val;
          return val
          }
          var ob = (target ).__ob__;
          if (target._isVue || (ob && ob.vmCount)) {
          "development" !== 'production' && warn(
                                                 'Avoid adding reactive properties to a Vue instance or its root $data ' +
                                                 'at runtime - declare it upfront in the data option.'
                                                 );
          return val
          }
          if (!ob) {
          target[key] = val;
          return val
          }
          defineReactive$$1(ob.value, key, val);
          ob.dep.notify();
          return val
          }
          
/**
 * Delete a property and trigger change if necessary.
 */
          function del (target, key) {
          if (Array.isArray(target) && typeof key === 'number') {
          target.splice(key, 1);
          return
          }
          var ob = (target ).__ob__;
          if (target._isVue || (ob && ob.vmCount)) {
          "development" !== 'production' && warn(
                                                 'Avoid deleting properties on a Vue instance or its root $data ' +
                                                 '- just set it to null.'
                                                 );
          return
          }
          if (!hasOwn(target, key)) {
          return
          }
          delete target[key];
          if (!ob) {
          return
          }
          ob.dep.notify();
          }
          
/**
 * Collect dependencies on array elements when the array is touched, since
 * we cannot intercept array element access like property getters.
 */
          function dependArray (value) {
          for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
          e = value[i];
          e && e.__ob__ && e.__ob__.dep.depend();
          if (Array.isArray(e)) {
          dependArray(e);
          }
          }
          }
          
/*  */
          
/**
 * Option overwriting strategies are functions that handle
 * how to merge a parent option value and a child option
 * value into the final value.
 */
          var strats = config.optionMergeStrategies;
          
/**
 * Options with restrictions
 */
          {
          strats.el = strats.propsData = function (parent, child, vm, key) {
          if (!vm) {
          warn(
               "option \"" + key + "\" can only be used during instance " +
               'creation with the `new` keyword.'
               );
          }
          return defaultStrat(parent, child)
          };
          }
          
/**
 * Helper that recursively merges two data objects together.
 */
          function mergeData (to, from) {
          if (!from) { return to }
          var key, toVal, fromVal;
          var keys = Object.keys(from);
          for (var i = 0; i < keys.length; i++) {
          key = keys[i];
          toVal = to[key];
          fromVal = from[key];
          if (!hasOwn(to, key)) {
          set(to, key, fromVal);
          } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
          mergeData(toVal, fromVal);
          }
          }
          return to
          }
          
/**
 * Data
 */
          strats.data = function (
                                  parentVal,
                                  childVal,
                                  vm
                                  ) {
          if (!vm) {
          // in a Vue.extend merge, both should be functions
          if (!childVal) {
          return parentVal
          }
          if (typeof childVal !== 'function') {
          "development" !== 'production' && warn(
                                                 'The "data" option should be a function ' +
                                                 'that returns a per-instance value in component ' +
                                                 'definitions.',
                                                 vm
                                                 );
          return parentVal
          }
          if (!parentVal) {
          return childVal
          }
          // when parentVal & childVal are both present,
          // we need to return a function that returns the
          // merged result of both functions... no need to
          // check if parentVal is a function here because
          // it has to be a function to pass previous merges.
          return function mergedDataFn () {
          return mergeData(
                           childVal.call(this),
                           parentVal.call(this)
                           )
          }
          } else if (parentVal || childVal) {
          return function mergedInstanceDataFn () {
          // instance merge
          var instanceData = typeof childVal === 'function'
          ? childVal.call(vm)
          : childVal;
          var defaultData = typeof parentVal === 'function'
          ? parentVal.call(vm)
          : undefined;
          if (instanceData) {
          return mergeData(instanceData, defaultData)
          } else {
          return defaultData
          }
          }
          }
          };
          
/**
 * Hooks and props are merged as arrays.
 */
          function mergeHook (
                              parentVal,
                              childVal
                              ) {
          return childVal
          ? parentVal
          ? parentVal.concat(childVal)
          : Array.isArray(childVal)
          ? childVal
          : [childVal]
          : parentVal
          }
          
          LIFECYCLE_HOOKS.forEach(function (hook) {
                                  strats[hook] = mergeHook;
                                  });
          
/**
 * Assets
 *
 * When a vm is present (instance creation), we need to do
 * a three-way merge between constructor options, instance
 * options and parent options.
 */
          function mergeAssets (parentVal, childVal) {
          var res = Object.create(parentVal || null);
          return childVal
          ? extend(res, childVal)
          : res
          }
          
          ASSET_TYPES.forEach(function (type) {
                              strats[type + 's'] = mergeAssets;
                              });
          
/**
 * Watchers.
 *
 * Watchers hashes should not overwrite one
 * another, so we merge them as arrays.
 */
          strats.watch = function (parentVal, childVal) {
          /* istanbul ignore if */
          if (!childVal) { return Object.create(parentVal || null) }
          if (!parentVal) { return childVal }
          var ret = {};
          extend(ret, parentVal);
          for (var key in childVal) {
          var parent = ret[key];
          var child = childVal[key];
          if (parent && !Array.isArray(parent)) {
          parent = [parent];
          }
          ret[key] = parent
          ? parent.concat(child)
          : [child];
          }
          return ret
          };
          
/**
 * Other object hashes.
 */
          strats.props =
          strats.methods =
          strats.computed = function (parentVal, childVal) {
          if (!childVal) { return Object.create(parentVal || null) }
          if (!parentVal) { return childVal }
          var ret = Object.create(null);
          extend(ret, parentVal);
          extend(ret, childVal);
          return ret
          };
          
/**
 * Default strategy.
 */
          var defaultStrat = function (parentVal, childVal) {
          return childVal === undefined
          ? parentVal
          : childVal
          };
          
/**
 * Validate component names
 */
          function checkComponents (options) {
          for (var key in options.components) {
          var lower = key.toLowerCase();
          if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
          warn(
               'Do not use built-in or reserved HTML elements as component ' +
               'id: ' + key
               );
          }
          }
          }
          
/**
 * Ensure all props option syntax are normalized into the
 * Object-based format.
 */
          function normalizeProps (options) {
          var props = options.props;
          if (!props) { return }
          var res = {};
          var i, val, name;
          if (Array.isArray(props)) {
          i = props.length;
          while (i--) {
          val = props[i];
          if (typeof val === 'string') {
          name = camelize(val);
          res[name] = { type: null };
          } else {
          warn('props must be strings when using array syntax.');
          }
          }
          } else if (isPlainObject(props)) {
          for (var key in props) {
          val = props[key];
          name = camelize(key);
          res[name] = isPlainObject(val)
          ? val
          : { type: val };
          }
          }
          options.props = res;
          }
          
/**
 * Normalize raw function directives into object format.
 */
          function normalizeDirectives (options) {
          var dirs = options.directives;
          if (dirs) {
          for (var key in dirs) {
          var def = dirs[key];
          if (typeof def === 'function') {
          dirs[key] = { bind: def, update: def };
          }
          }
          }
          }
          
/**
 * Merge two option objects into a new one.
 * Core utility used in both instantiation and inheritance.
 */
          function mergeOptions (
                                 parent,
                                 child,
                                 vm
                                 ) {
          {
          checkComponents(child);
          }
          
          if (typeof child === 'function') {
          child = child.options;
          }
          
          normalizeProps(child);
          normalizeDirectives(child);
          var extendsFrom = child.extends;
          if (extendsFrom) {
          parent = mergeOptions(parent, extendsFrom, vm);
          }
          if (child.mixins) {
          for (var i = 0, l = child.mixins.length; i < l; i++) {
          parent = mergeOptions(parent, child.mixins[i], vm);
          }
          }
          var options = {};
          var key;
          for (key in parent) {
          mergeField(key);
          }
          for (key in child) {
          if (!hasOwn(parent, key)) {
          mergeField(key);
          }
          }
          function mergeField (key) {
          var strat = strats[key] || defaultStrat;
          options[key] = strat(parent[key], child[key], vm, key);
          }
          return options
          }
          
/**
 * Resolve an asset.
 * This function is used because child instances need access
 * to assets defined in its ancestor chain.
 */
          function resolveAsset (
                                 options,
                                 type,
                                 id,
                                 warnMissing
                                 ) {
          /* istanbul ignore if */
          if (typeof id !== 'string') {
          return
          }
          var assets = options[type];
          // check local registration variations first
          if (hasOwn(assets, id)) { return assets[id] }
          var camelizedId = camelize(id);
          if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
          var PascalCaseId = capitalize(camelizedId);
          if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
          // fallback to prototype chain
          var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
          if ("development" !== 'production' && warnMissing && !res) {
          warn(
               'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
               options
               );
          }
          return res
          }
          
/*  */
          
          function validateProp (
                                 key,
                                 propOptions,
                                 propsData,
                                 vm
                                 ) {
          var prop = propOptions[key];
          var absent = !hasOwn(propsData, key);
          var value = propsData[key];
          // handle boolean props
          if (isType(Boolean, prop.type)) {
          if (absent && !hasOwn(prop, 'default')) {
          value = false;
          } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
          value = true;
          }
          }
          // check default value
          if (value === undefined) {
          value = getPropDefaultValue(vm, prop, key);
          // since the default value is a fresh copy,
          // make sure to observe it.
          var prevShouldConvert = observerState.shouldConvert;
          observerState.shouldConvert = true;
          observe(value);
          observerState.shouldConvert = prevShouldConvert;
          }
          {
          assertProp(prop, key, value, vm, absent);
          }
          return value
          }
          
/**
 * Get the default value of a prop.
 */
          function getPropDefaultValue (vm, prop, key) {
          // no default, return undefined
          if (!hasOwn(prop, 'default')) {
          return undefined
          }
          var def = prop.default;
          // warn against non-factory defaults for Object & Array
          if ("development" !== 'production' && isObject(def)) {
          warn(
               'Invalid default value for prop "' + key + '": ' +
               'Props with type Object/Array must use a factory function ' +
               'to return the default value.',
               vm
               );
          }
          // the raw prop value was also undefined from previous render,
          // return previous default value to avoid unnecessary watcher trigger
          if (vm && vm.$options.propsData &&
              vm.$options.propsData[key] === undefined &&
              vm._props[key] !== undefined) {
          return vm._props[key]
          }
          // call factory function for non-Function types
          // a value is Function if its prototype is function even across different execution context
          return typeof def === 'function' && getType(prop.type) !== 'Function'
          ? def.call(vm)
          : def
          }
          
/**
 * Assert whether a prop is valid.
 */
          function assertProp (
                               prop,
                               name,
                               value,
                               vm,
                               absent
                               ) {
          if (prop.required && absent) {
          warn(
               'Missing required prop: "' + name + '"',
               vm
               );
          return
          }
          if (value == null && !prop.required) {
          return
          }
          var type = prop.type;
          var valid = !type || type === true;
          var expectedTypes = [];
          if (type) {
          if (!Array.isArray(type)) {
          type = [type];
          }
          for (var i = 0; i < type.length && !valid; i++) {
          var assertedType = assertType(value, type[i]);
          expectedTypes.push(assertedType.expectedType || '');
          valid = assertedType.valid;
          }
          }
          if (!valid) {
          warn(
               'Invalid prop: type check failed for prop "' + name + '".' +
               ' Expected ' + expectedTypes.map(capitalize).join(', ') +
               ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
               vm
               );
          return
          }
          var validator = prop.validator;
          if (validator) {
          if (!validator(value)) {
          warn(
               'Invalid prop: custom validator check failed for prop "' + name + '".',
               vm
               );
          }
          }
          }
          
          var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
          
          function assertType (value, type) {
          var valid;
          var expectedType = getType(type);
          if (simpleCheckRE.test(expectedType)) {
          valid = typeof value === expectedType.toLowerCase();
          } else if (expectedType === 'Object') {
          valid = isPlainObject(value);
          } else if (expectedType === 'Array') {
          valid = Array.isArray(value);
          } else {
          valid = value instanceof type;
          }
          return {
          valid: valid,
          expectedType: expectedType
          }
          }
          
/**
 * Use function string name to check built-in types,
 * because a simple equality check will fail when running
 * across different vms / iframes.
 */
          function getType (fn) {
          var match = fn && fn.toString().match(/^\s*function (\w+)/);
          return match ? match[1] : ''
          }
          
          function isType (type, fn) {
          if (!Array.isArray(fn)) {
          return getType(fn) === getType(type)
          }
          for (var i = 0, len = fn.length; i < len; i++) {
          if (getType(fn[i]) === getType(type)) {
          return true
          }
          }
          /* istanbul ignore next */
          return false
          }
          
          var mark;
          var measure;
          
          {
          var perf = inBrowser && window.performance;
          /* istanbul ignore if */
          if (
              perf &&
              perf.mark &&
              perf.measure &&
              perf.clearMarks &&
              perf.clearMeasures
              ) {
          mark = function (tag) { return perf.mark(tag); };
          measure = function (name, startTag, endTag) {
          perf.measure(name, startTag, endTag);
          perf.clearMarks(startTag);
          perf.clearMarks(endTag);
          perf.clearMeasures(name);
          };
          }
          }
          
/* not type checking this file because flow doesn't play well with Proxy */
          
          var initProxy;
          
          {
          var allowedGlobals = makeMap(
                                       'Infinity,undefined,NaN,isFinite,isNaN,' +
                                       'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
                                       'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
                                       'require' // for Webpack/Browserify
                                       );
          
          var warnNonPresent = function (target, key) {
          warn(
               "Property or method \"" + key + "\" is not defined on the instance but " +
               "referenced during render. Make sure to declare reactive data " +
               "properties in the data option.",
               target
               );
          };
          
          var hasProxy =
          typeof Proxy !== 'undefined' &&
          Proxy.toString().match(/native code/);
          
          if (hasProxy) {
          var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
          config.keyCodes = new Proxy(config.keyCodes, {
                                      set: function set (target, key, value) {
                                      if (isBuiltInModifier(key)) {
                                      warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
                                      return false
                                      } else {
                                      target[key] = value;
                                      return true
                                      }
                                      }
                                      });
          }
          
          var hasHandler = {
          has: function has (target, key) {
          var has = key in target;
          var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
          if (!has && !isAllowed) {
          warnNonPresent(target, key);
          }
          return has || !isAllowed
          }
          };
          
          var getHandler = {
          get: function get (target, key) {
          if (typeof key === 'string' && !(key in target)) {
          warnNonPresent(target, key);
          }
          return target[key]
          }
          };
          
          initProxy = function initProxy (vm) {
          if (hasProxy) {
          // determine which proxy handler to use
          var options = vm.$options;
          var handlers = options.render && options.render._withStripped
          ? getHandler
          : hasHandler;
          vm._renderProxy = new Proxy(vm, handlers);
          } else {
          vm._renderProxy = vm;
          }
          };
          }
          
/*  */
          
          var VNode = function VNode (
                                      tag,
                                      data,
                                      children,
                                      text,
                                      elm,
                                      context,
                                      componentOptions
                                      ) {
          this.tag = tag;
          this.data = data;
          this.children = children;
          this.text = text;
          this.elm = elm;
          this.ns = undefined;
          this.context = context;
          this.functionalContext = undefined;
          this.key = data && data.key;
          this.componentOptions = componentOptions;
          this.componentInstance = undefined;
          this.parent = undefined;
          this.raw = false;
          this.isStatic = false;
          this.isRootInsert = true;
          this.isComment = false;
          this.isCloned = false;
          this.isOnce = false;
          };
          
          var prototypeAccessors = { child: {} };
          
          // DEPRECATED: alias for componentInstance for backwards compat.
/* istanbul ignore next */
          prototypeAccessors.child.get = function () {
          return this.componentInstance
          };
          
          Object.defineProperties( VNode.prototype, prototypeAccessors );
          
          var createEmptyVNode = function () {
          var node = new VNode();
          node.text = '';
          node.isComment = true;
          return node
          };
          
          function createTextVNode (val) {
          return new VNode(undefined, undefined, undefined, String(val))
          }
          
          // optimized shallow clone
          // used for static nodes and slot nodes because they may be reused across
          // multiple renders, cloning them avoids errors when DOM manipulations rely
          // on their elm reference.
          function cloneVNode (vnode) {
          var cloned = new VNode(
                                 vnode.tag,
                                 vnode.data,
                                 vnode.children,
                                 vnode.text,
                                 vnode.elm,
                                 vnode.context,
                                 vnode.componentOptions
                                 );
          cloned.ns = vnode.ns;
          cloned.isStatic = vnode.isStatic;
          cloned.key = vnode.key;
          cloned.isCloned = true;
          return cloned
          }
          
          function cloneVNodes (vnodes) {
          var len = vnodes.length;
          var res = new Array(len);
          for (var i = 0; i < len; i++) {
          res[i] = cloneVNode(vnodes[i]);
          }
          return res
          }
          
/*  */
          
          var normalizeEvent = cached(function (name) {
                                      var passive = name.charAt(0) === '&';
                                      name = passive ? name.slice(1) : name;
                                      var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
                                      name = once$$1 ? name.slice(1) : name;
                                      var capture = name.charAt(0) === '!';
                                      name = capture ? name.slice(1) : name;
                                      return {
                                      name: name,
                                      once: once$$1,
                                      capture: capture,
                                      passive: passive
                                      }
                                      });
          
          function createFnInvoker (fns) {
          function invoker () {
          var arguments$1 = arguments;
          
          var fns = invoker.fns;
          if (Array.isArray(fns)) {
          for (var i = 0; i < fns.length; i++) {
          fns[i].apply(null, arguments$1);
          }
          } else {
          // return handler return value for single handlers
          return fns.apply(null, arguments)
          }
          }
          invoker.fns = fns;
          return invoker
          }
          
          function updateListeners (
                                    on,
                                    oldOn,
                                    add,
                                    remove$$1,
                                    vm
                                    ) {
          var name, cur, old, event;
          for (name in on) {
          cur = on[name];
          old = oldOn[name];
          event = normalizeEvent(name);
          if (isUndef(cur)) {
          "development" !== 'production' && warn(
                                                 "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
                                                 vm
                                                 );
          } else if (isUndef(old)) {
          if (isUndef(cur.fns)) {
          cur = on[name] = createFnInvoker(cur);
          }
          add(event.name, cur, event.once, event.capture, event.passive);
          } else if (cur !== old) {
          old.fns = cur;
          on[name] = old;
          }
          }
          for (name in oldOn) {
          if (isUndef(on[name])) {
          event = normalizeEvent(name);
          remove$$1(event.name, oldOn[name], event.capture);
          }
          }
          }
          
/*  */
          
          function mergeVNodeHook (def, hookKey, hook) {
          var invoker;
          var oldHook = def[hookKey];
          
          function wrappedHook () {
          hook.apply(this, arguments);
          // important: remove merged hook to ensure it's called only once
          // and prevent memory leak
          remove(invoker.fns, wrappedHook);
          }
          
          if (isUndef(oldHook)) {
          // no existing hook
          invoker = createFnInvoker([wrappedHook]);
          } else {
          /* istanbul ignore if */
          if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
          // already a merged invoker
          invoker = oldHook;
          invoker.fns.push(wrappedHook);
          } else {
          // existing plain hook
          invoker = createFnInvoker([oldHook, wrappedHook]);
          }
          }
          
          invoker.merged = true;
          def[hookKey] = invoker;
          }
          
/*  */
          
          function extractPropsFromVNodeData (
                                              data,
                                              Ctor,
                                              tag
                                              ) {
          // we are only extracting raw values here.
          // validation and default values are handled in the child
          // component itself.
          var propOptions = Ctor.options.props;
          if (isUndef(propOptions)) {
          return
          }
          var res = {};
          var attrs = data.attrs;
          var props = data.props;
          if (isDef(attrs) || isDef(props)) {
          for (var key in propOptions) {
          var altKey = hyphenate(key);
          {
          var keyInLowerCase = key.toLowerCase();
          if (
              key !== keyInLowerCase &&
              attrs && hasOwn(attrs, keyInLowerCase)
              ) {
          tip(
              "Prop \"" + keyInLowerCase + "\" is passed to component " +
              (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
              " \"" + key + "\". " +
              "Note that HTML attributes are case-insensitive and camelCased " +
              "props need to use their kebab-case equivalents when using in-DOM " +
              "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
              );
          }
          }
          checkProp(res, props, key, altKey, true) ||
          checkProp(res, attrs, key, altKey, false);
          }
          }
          return res
          }
          
          function checkProp (
                              res,
                              hash,
                              key,
                              altKey,
                              preserve
                              ) {
          if (isDef(hash)) {
          if (hasOwn(hash, key)) {
          res[key] = hash[key];
          if (!preserve) {
          delete hash[key];
          }
          return true
          } else if (hasOwn(hash, altKey)) {
          res[key] = hash[altKey];
          if (!preserve) {
          delete hash[altKey];
          }
          return true
          }
          }
          return false
          }
          
/*  */
          
          // The template compiler attempts to minimize the need for normalization by
          // statically analyzing the template at compile time.
          //
          // For plain HTML markup, normalization can be completely skipped because the
          // generated render function is guaranteed to return Array<VNode>. There are
          // two cases where extra normalization is needed:
          
          // 1. When the children contains components - because a functional component
          // may return an Array instead of a single root. In this case, just a simple
          // normalization is needed - if any child is an Array, we flatten the whole
          // thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
          // because functional components already normalize their own children.
          function simpleNormalizeChildren (children) {
          for (var i = 0; i < children.length; i++) {
          if (Array.isArray(children[i])) {
          return Array.prototype.concat.apply([], children)
          }
          }
          return children
          }
          
          // 2. When the children contains constructs that always generated nested Arrays,
          // e.g. <template>, <slot>, v-for, or when the children is provided by user
          // with hand-written render functions / JSX. In such cases a full normalization
          // is needed to cater to all possible types of children values.
          function normalizeChildren (children) {
          return isPrimitive(children)
          ? [createTextVNode(children)]
          : Array.isArray(children)
          ? normalizeArrayChildren(children)
          : undefined
          }
          
          function normalizeArrayChildren (children, nestedIndex) {
          var res = [];
          var i, c, last;
          for (i = 0; i < children.length; i++) {
          c = children[i];
          if (isUndef(c) || typeof c === 'boolean') { continue }
          last = res[res.length - 1];
          //  nested
          if (Array.isArray(c)) {
          res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
          } else if (isPrimitive(c)) {
          if (isDef(last) && isDef(last.text)) {
          (last).text += String(c);
          } else if (c !== '') {
          // convert primitive to vnode
          res.push(createTextVNode(c));
          }
          } else {
          if (isDef(c.text) && isDef(last) && isDef(last.text)) {
          res[res.length - 1] = createTextVNode(last.text + c.text);
          } else {
          // default key for nested array children (likely generated by v-for)
          if (isDef(c.tag) && isUndef(c.key) && isDef(nestedIndex)) {
          c.key = "__vlist" + ((nestedIndex)) + "_" + i + "__";
          }
          res.push(c);
          }
          }
          }
          return res
          }
          
/*  */
          
          function ensureCtor (comp, base) {
          return isObject(comp)
          ? base.extend(comp)
          : comp
          }
          
          function resolveAsyncComponent (
                                          factory,
                                          baseCtor,
                                          context
                                          ) {
          if (isTrue(factory.error) && isDef(factory.errorComp)) {
          return factory.errorComp
          }
          
          if (isDef(factory.resolved)) {
          return factory.resolved
          }
          
          if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
          return factory.loadingComp
          }
          
          if (isDef(factory.contexts)) {
          // already pending
          factory.contexts.push(context);
          } else {
          var contexts = factory.contexts = [context];
          var sync = true;
          
          var forceRender = function () {
          for (var i = 0, l = contexts.length; i < l; i++) {
          contexts[i].$forceUpdate();
          }
          };
          
          var resolve = once(function (res) {
                             // cache resolved
                             factory.resolved = ensureCtor(res, baseCtor);
                             // invoke callbacks only if this is not a synchronous resolve
                             // (async resolves are shimmed as synchronous during SSR)
                             if (!sync) {
                             forceRender();
                             }
                             });
          
          var reject = once(function (reason) {
                            "development" !== 'production' && warn(
                                                                   "Failed to resolve async component: " + (String(factory)) +
                                                                   (reason ? ("\nReason: " + reason) : '')
                                                                   );
                            if (isDef(factory.errorComp)) {
                            factory.error = true;
                            forceRender();
                            }
                            });
          
          var res = factory(resolve, reject);
          
          if (isObject(res)) {
          if (typeof res.then === 'function') {
          // () => Promise
          if (isUndef(factory.resolved)) {
          res.then(resolve, reject);
          }
          } else if (isDef(res.component) && typeof res.component.then === 'function') {
          res.component.then(resolve, reject);
          
          if (isDef(res.error)) {
          factory.errorComp = ensureCtor(res.error, baseCtor);
          }
          
          if (isDef(res.loading)) {
          factory.loadingComp = ensureCtor(res.loading, baseCtor);
          if (res.delay === 0) {
          factory.loading = true;
          } else {
          setTimeout(function () {
                     if (isUndef(factory.resolved) && isUndef(factory.error)) {
                     factory.loading = true;
                     forceRender();
                     }
                     }, res.delay || 200);
          }
          }
          
          if (isDef(res.timeout)) {
          setTimeout(function () {
                     reject(
                            "timeout (" + (res.timeout) + "ms)"
                            );
                     }, res.timeout);
          }
          }
          }
          
          sync = false;
          // return in case resolved synchronously
          return factory.loading
          ? factory.loadingComp
          : factory.resolved
          }
          }
          
/*  */
          
          function getFirstComponentChild (children) {
          if (Array.isArray(children)) {
          for (var i = 0; i < children.length; i++) {
          var c = children[i];
          if (isDef(c) && isDef(c.componentOptions)) {
          return c
          }
          }
          }
          }
          
/*  */
          
/*  */
          
          function initEvents (vm) {
          vm._events = Object.create(null);
          vm._hasHookEvent = false;
          // init parent attached events
          var listeners = vm.$options._parentListeners;
          if (listeners) {
          updateComponentListeners(vm, listeners);
          }
          }
          
          var target;
          
          function add (event, fn, once$$1) {
          if (once$$1) {
          target.$once(event, fn);
          } else {
          target.$on(event, fn);
          }
          }
          
          function remove$1 (event, fn) {
          target.$off(event, fn);
          }
          
          function updateComponentListeners (
                                             vm,
                                             listeners,
                                             oldListeners
                                             ) {
          target = vm;
          updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
          }
          
          function eventsMixin (Vue) {
          var hookRE = /^hook:/;
          Vue.prototype.$on = function (event, fn) {
          var this$1 = this;
          
          var vm = this;
          if (Array.isArray(event)) {
          for (var i = 0, l = event.length; i < l; i++) {
          this$1.$on(event[i], fn);
          }
          } else {
          (vm._events[event] || (vm._events[event] = [])).push(fn);
          // optimize hook:event cost by using a boolean flag marked at registration
          // instead of a hash lookup
          if (hookRE.test(event)) {
          vm._hasHookEvent = true;
          }
          }
          return vm
          };
          
          Vue.prototype.$once = function (event, fn) {
          var vm = this;
          function on () {
          vm.$off(event, on);
          fn.apply(vm, arguments);
          }
          on.fn = fn;
          vm.$on(event, on);
          return vm
          };
          
          Vue.prototype.$off = function (event, fn) {
          var this$1 = this;
          
          var vm = this;
          // all
          if (!arguments.length) {
          vm._events = Object.create(null);
          return vm
          }
          // array of events
          if (Array.isArray(event)) {
          for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
          this$1.$off(event[i$1], fn);
          }
          return vm
          }
          // specific event
          var cbs = vm._events[event];
          if (!cbs) {
          return vm
          }
          if (arguments.length === 1) {
          vm._events[event] = null;
          return vm
          }
          // specific handler
          var cb;
          var i = cbs.length;
          while (i--) {
          cb = cbs[i];
          if (cb === fn || cb.fn === fn) {
          cbs.splice(i, 1);
          break
          }
          }
          return vm
          };
          
          Vue.prototype.$emit = function (event) {
          var vm = this;
          {
          var lowerCaseEvent = event.toLowerCase();
          if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
          tip(
              "Event \"" + lowerCaseEvent + "\" is emitted in component " +
              (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
              "Note that HTML attributes are case-insensitive and you cannot use " +
              "v-on to listen to camelCase events when using in-DOM templates. " +
              "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
              );
          }
          }
          var cbs = vm._events[event];
          if (cbs) {
          cbs = cbs.length > 1 ? toArray(cbs) : cbs;
          var args = toArray(arguments, 1);
          for (var i = 0, l = cbs.length; i < l; i++) {
          cbs[i].apply(vm, args);
          }
          }
          return vm
          };
          }
          
/*  */
          
/**
 * Runtime helper for resolving raw children VNodes into a slot object.
 */
          function resolveSlots (
                                 children,
                                 context
                                 ) {
          var slots = {};
          if (!children) {
          return slots
          }
          var defaultSlot = [];
          for (var i = 0, l = children.length; i < l; i++) {
          var child = children[i];
          // named slots should only be respected if the vnode was rendered in the
          // same context.
          if ((child.context === context || child.functionalContext === context) &&
              child.data && child.data.slot != null) {
          var name = child.data.slot;
          var slot = (slots[name] || (slots[name] = []));
          if (child.tag === 'template') {
          slot.push.apply(slot, child.children);
          } else {
          slot.push(child);
          }
          } else {
          defaultSlot.push(child);
          }
          }
          // ignore whitespace
          if (!defaultSlot.every(isWhitespace)) {
          slots.default = defaultSlot;
          }
          return slots
          }
          
          function isWhitespace (node) {
          return node.isComment || node.text === ' '
          }
          
          function resolveScopedSlots (
                                       fns
                                       ) {
          var res = {};
          for (var i = 0; i < fns.length; i++) {
          res[fns[i][0]] = fns[i][1];
          }
          return res
          }
          
/*  */
          
          var activeInstance = null;
          
          function initLifecycle (vm) {
          var options = vm.$options;
          
          // locate first non-abstract parent
          var parent = options.parent;
          if (parent && !options.abstract) {
          while (parent.$options.abstract && parent.$parent) {
          parent = parent.$parent;
          }
          parent.$children.push(vm);
          }
          
          vm.$parent = parent;
          vm.$root = parent ? parent.$root : vm;
          
          vm.$children = [];
          vm.$refs = {};
          
          vm._watcher = null;
          vm._inactive = null;
          vm._directInactive = false;
          vm._isMounted = false;
          vm._isDestroyed = false;
          vm._isBeingDestroyed = false;
          }
          
          function lifecycleMixin (Vue) {
          Vue.prototype._update = function (vnode, hydrating) {
          var vm = this;
          if (vm._isMounted) {
          callHook(vm, 'beforeUpdate');
          }
          var prevEl = vm.$el;
          var prevVnode = vm._vnode;
          var prevActiveInstance = activeInstance;
          activeInstance = vm;
          vm._vnode = vnode;
          // Vue.prototype.__patch__ is injected in entry points
          // based on the rendering backend used.
          if (!prevVnode) {
          // initial render
          vm.$el = vm.__patch__(
                                vm.$el, vnode, hydrating, false /* removeOnly */,
                                vm.$options._parentElm,
                                vm.$options._refElm
                                );
          } else {
          // updates
          vm.$el = vm.__patch__(prevVnode, vnode);
          }
          activeInstance = prevActiveInstance;
          // update __vue__ reference
          if (prevEl) {
          prevEl.__vue__ = null;
          }
          if (vm.$el) {
          vm.$el.__vue__ = vm;
          }
          // if parent is an HOC, update its $el as well
          if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
          vm.$parent.$el = vm.$el;
          }
          // updated hook is called by the scheduler to ensure that children are
          // updated in a parent's updated hook.
          };
          
          Vue.prototype.$forceUpdate = function () {
          var vm = this;
          if (vm._watcher) {
          vm._watcher.update();
          }
          };
          
          Vue.prototype.$destroy = function () {
          var vm = this;
          if (vm._isBeingDestroyed) {
          return
          }
          callHook(vm, 'beforeDestroy');
          vm._isBeingDestroyed = true;
          // remove self from parent
          var parent = vm.$parent;
          if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
          remove(parent.$children, vm);
          }
          // teardown watchers
          if (vm._watcher) {
          vm._watcher.teardown();
          }
          var i = vm._watchers.length;
          while (i--) {
          vm._watchers[i].teardown();
          }
          // remove reference from data ob
          // frozen object may not have observer.
          if (vm._data.__ob__) {
          vm._data.__ob__.vmCount--;
          }
          // call the last hook...
          vm._isDestroyed = true;
          // invoke destroy hooks on current rendered tree
          vm.__patch__(vm._vnode, null);
          // fire destroyed hook
          callHook(vm, 'destroyed');
          // turn off all instance listeners.
          vm.$off();
          // remove __vue__ reference
          if (vm.$el) {
          vm.$el.__vue__ = null;
          }
          // remove reference to DOM nodes (prevents leak)
          vm.$options._parentElm = vm.$options._refElm = null;
          };
          }
          
          function mountComponent (
                                   vm,
                                   el,
                                   hydrating
                                   ) {
          vm.$el = el;
          if (!vm.$options.render) {
          vm.$options.render = createEmptyVNode;
          {
          /* istanbul ignore if */
          if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
              vm.$options.el || el) {
          warn(
               'You are using the runtime-only build of Vue where the template ' +
               'compiler is not available. Either pre-compile the templates into ' +
               'render functions, or use the compiler-included build.',
               vm
               );
          } else {
          warn(
               'Failed to mount component: template or render function not defined.',
               vm
               );
          }
          }
          }
          callHook(vm, 'beforeMount');
          
          var updateComponent;
          /* istanbul ignore if */
          if ("development" !== 'production' && config.performance && mark) {
          updateComponent = function () {
          var name = vm._name;
          var id = vm._uid;
          var startTag = "vue-perf-start:" + id;
          var endTag = "vue-perf-end:" + id;
          
          mark(startTag);
          var vnode = vm._render();
          mark(endTag);
          measure((name + " render"), startTag, endTag);
          
          mark(startTag);
          vm._update(vnode, hydrating);
          mark(endTag);
          measure((name + " patch"), startTag, endTag);
          };
          } else {
          updateComponent = function () {
          vm._update(vm._render(), hydrating);
          };
          }
          
          vm._watcher = new Watcher(vm, updateComponent, noop);
          hydrating = false;
          
          // manually mounted instance, call mounted on self
          // mounted is called for render-created child components in its inserted hook
          if (vm.$vnode == null) {
          vm._isMounted = true;
          callHook(vm, 'mounted');
          }
          return vm
          }
          
          function updateChildComponent (
                                         vm,
                                         propsData,
                                         listeners,
                                         parentVnode,
                                         renderChildren
                                         ) {
          // determine whether component has slot children
          // we need to do this before overwriting $options._renderChildren
          var hasChildren = !!(
                               renderChildren ||               // has new static slots
                               vm.$options._renderChildren ||  // has old static slots
                               parentVnode.data.scopedSlots || // has new scoped slots
                               vm.$scopedSlots !== emptyObject // has old scoped slots
                               );
          
          vm.$options._parentVnode = parentVnode;
          vm.$vnode = parentVnode; // update vm's placeholder node without re-render
          if (vm._vnode) { // update child tree's parent
          vm._vnode.parent = parentVnode;
          }
          vm.$options._renderChildren = renderChildren;
          
          // update props
          if (propsData && vm.$options.props) {
          observerState.shouldConvert = false;
          {
          observerState.isSettingProps = true;
          }
          var props = vm._props;
          var propKeys = vm.$options._propKeys || [];
          for (var i = 0; i < propKeys.length; i++) {
          var key = propKeys[i];
          props[key] = validateProp(key, vm.$options.props, propsData, vm);
          }
          observerState.shouldConvert = true;
          {
          observerState.isSettingProps = false;
          }
          // keep a copy of raw propsData
          vm.$options.propsData = propsData;
          }
          // update listeners
          if (listeners) {
          var oldListeners = vm.$options._parentListeners;
          vm.$options._parentListeners = listeners;
          updateComponentListeners(vm, listeners, oldListeners);
          }
          // resolve slots + force update if has children
          if (hasChildren) {
          vm.$slots = resolveSlots(renderChildren, parentVnode.context);
          vm.$forceUpdate();
          }
          }
          
          function isInInactiveTree (vm) {
          while (vm && (vm = vm.$parent)) {
          if (vm._inactive) { return true }
          }
          return false
          }
          
          function activateChildComponent (vm, direct) {
          if (direct) {
          vm._directInactive = false;
          if (isInInactiveTree(vm)) {
          return
          }
          } else if (vm._directInactive) {
          return
          }
          if (vm._inactive || vm._inactive === null) {
          vm._inactive = false;
          for (var i = 0; i < vm.$children.length; i++) {
          activateChildComponent(vm.$children[i]);
          }
          callHook(vm, 'activated');
          }
          }
          
          function deactivateChildComponent (vm, direct) {
          if (direct) {
          vm._directInactive = true;
          if (isInInactiveTree(vm)) {
          return
          }
          }
          if (!vm._inactive) {
          vm._inactive = true;
          for (var i = 0; i < vm.$children.length; i++) {
          deactivateChildComponent(vm.$children[i]);
          }
          callHook(vm, 'deactivated');
          }
          }
          
          function callHook (vm, hook) {
          var handlers = vm.$options[hook];
          if (handlers) {
          for (var i = 0, j = handlers.length; i < j; i++) {
          try {
          handlers[i].call(vm);
          } catch (e) {
          handleError(e, vm, (hook + " hook"));
          }
          }
          }
          if (vm._hasHookEvent) {
          vm.$emit('hook:' + hook);
          }
          }
          
/*  */
          
          
          var MAX_UPDATE_COUNT = 100;
          
          var queue = [];
          var activatedChildren = [];
          var has = {};
          var circular = {};
          var waiting = false;
          var flushing = false;
          var index = 0;
          
/**
 * Reset the scheduler's state.
 */
          function resetSchedulerState () {
          queue.length = activatedChildren.length = 0;
          has = {};
          {
          circular = {};
          }
          waiting = flushing = false;
          }
          
/**
 * Flush both queues and run the watchers.
 */
          function flushSchedulerQueue () {
          flushing = true;
          var watcher, id;
          
          // Sort queue before flush.
          // This ensures that:
          // 1. Components are updated from parent to child. (because parent is always
          //    created before the child)
          // 2. A component's user watchers are run before its render watcher (because
          //    user watchers are created before the render watcher)
          // 3. If a component is destroyed during a parent component's watcher run,
          //    its watchers can be skipped.
          queue.sort(function (a, b) { return a.id - b.id; });
          
          // do not cache length because more watchers might be pushed
          // as we run existing watchers
          for (index = 0; index < queue.length; index++) {
          watcher = queue[index];
          id = watcher.id;
          has[id] = null;
          watcher.run();
          // in dev build, check and stop circular updates.
          if ("development" !== 'production' && has[id] != null) {
          circular[id] = (circular[id] || 0) + 1;
          if (circular[id] > MAX_UPDATE_COUNT) {
          warn(
               'You may have an infinite update loop ' + (
                                                          watcher.user
                                                          ? ("in watcher with expression \"" + (watcher.expression) + "\"")
                                                          : "in a component render function."
                                                          ),
               watcher.vm
               );
          break
          }
          }
          }
          
          // keep copies of post queues before resetting state
          var activatedQueue = activatedChildren.slice();
          var updatedQueue = queue.slice();
          
          resetSchedulerState();
          
          // call component updated and activated hooks
          callActivatedHooks(activatedQueue);
          callUpdateHooks(updatedQueue);
          
          // devtool hook
          /* istanbul ignore if */
          if (devtools && config.devtools) {
          devtools.emit('flush');
          }
          }
          
          function callUpdateHooks (queue) {
          var i = queue.length;
          while (i--) {
          var watcher = queue[i];
          var vm = watcher.vm;
          if (vm._watcher === watcher && vm._isMounted) {
          callHook(vm, 'updated');
          }
          }
          }
          
/**
 * Queue a kept-alive component that was activated during patch.
 * The queue will be processed after the entire tree has been patched.
 */
          function queueActivatedComponent (vm) {
          // setting _inactive to false here so that a render function can
          // rely on checking whether it's in an inactive tree (e.g. router-view)
          vm._inactive = false;
          activatedChildren.push(vm);
          }
          
          function callActivatedHooks (queue) {
          for (var i = 0; i < queue.length; i++) {
          queue[i]._inactive = true;
          activateChildComponent(queue[i], true /* true */);
          }
          }
          
/**
 * Push a watcher into the watcher queue.
 * Jobs with duplicate IDs will be skipped unless it's
 * pushed when the queue is being flushed.
 */
          function queueWatcher (watcher) {
          var id = watcher.id;
          if (has[id] == null) {
          has[id] = true;
          if (!flushing) {
          queue.push(watcher);
          } else {
          // if already flushing, splice the watcher based on its id
          // if already past its id, it will be run next immediately.
          var i = queue.length - 1;
          while (i >= 0 && queue[i].id > watcher.id) {
          i--;
          }
          queue.splice(Math.max(i, index) + 1, 0, watcher);
          }
          // queue the flush
          if (!waiting) {
          waiting = true;
          nextTick(flushSchedulerQueue);
          }
          }
          }
          
/*  */
          
          var uid$2 = 0;
          
/**
 * A watcher parses an expression, collects dependencies,
 * and fires callback when the expression value changes.
 * This is used for both the $watch() api and directives.
 */
          var Watcher = function Watcher (
                                          vm,
                                          expOrFn,
                                          cb,
                                          options
                                          ) {
          this.vm = vm;
          vm._watchers.push(this);
          // options
          if (options) {
          this.deep = !!options.deep;
          this.user = !!options.user;
          this.lazy = !!options.lazy;
          this.sync = !!options.sync;
          } else {
          this.deep = this.user = this.lazy = this.sync = false;
          }
          this.cb = cb;
          this.id = ++uid$2; // uid for batching
          this.active = true;
          this.dirty = this.lazy; // for lazy watchers
          this.deps = [];
          this.newDeps = [];
          this.depIds = new _Set();
          this.newDepIds = new _Set();
          this.expression = expOrFn.toString();
          // parse expression for getter
          if (typeof expOrFn === 'function') {
          this.getter = expOrFn;
          } else {
          this.getter = parsePath(expOrFn);
          if (!this.getter) {
          this.getter = function () {};
          "development" !== 'production' && warn(
                                                 "Failed watching path: \"" + expOrFn + "\" " +
                                                 'Watcher only accepts simple dot-delimited paths. ' +
                                                 'For full control, use a function instead.',
                                                 vm
                                                 );
          }
          }
          this.value = this.lazy
          ? undefined
          : this.get();
          };
          
/**
 * Evaluate the getter, and re-collect dependencies.
 */
          Watcher.prototype.get = function get () {
          pushTarget(this);
          var value;
          var vm = this.vm;
          if (this.user) {
          try {
          value = this.getter.call(vm, vm);
          } catch (e) {
          handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
          }
          } else {
          value = this.getter.call(vm, vm);
          }
          // "touch" every property so they are all tracked as
          // dependencies for deep watching
          if (this.deep) {
          traverse(value);
          }
          popTarget();
          this.cleanupDeps();
          return value
          };
          
/**
 * Add a dependency to this directive.
 */
          Watcher.prototype.addDep = function addDep (dep) {
          var id = dep.id;
          if (!this.newDepIds.has(id)) {
          this.newDepIds.add(id);
          this.newDeps.push(dep);
          if (!this.depIds.has(id)) {
          dep.addSub(this);
          }
          }
          };
          
/**
 * Clean up for dependency collection.
 */
          Watcher.prototype.cleanupDeps = function cleanupDeps () {
          var this$1 = this;
          
          var i = this.deps.length;
          while (i--) {
          var dep = this$1.deps[i];
          if (!this$1.newDepIds.has(dep.id)) {
          dep.removeSub(this$1);
          }
          }
          var tmp = this.depIds;
          this.depIds = this.newDepIds;
          this.newDepIds = tmp;
          this.newDepIds.clear();
          tmp = this.deps;
          this.deps = this.newDeps;
          this.newDeps = tmp;
          this.newDeps.length = 0;
          };
          
/**
 * Subscriber interface.
 * Will be called when a dependency changes.
 */
          Watcher.prototype.update = function update () {
          /* istanbul ignore else */
          if (this.lazy) {
          this.dirty = true;
          } else if (this.sync) {
          this.run();
          } else {
          queueWatcher(this);
          }
          };
          
/**
 * Scheduler job interface.
 * Will be called by the scheduler.
 */
          Watcher.prototype.run = function run () {
          if (this.active) {
          var value = this.get();
          if (
              value !== this.value ||
              // Deep watchers and watchers on Object/Arrays should fire even
              // when the value is the same, because the value may
              // have mutated.
              isObject(value) ||
              this.deep
              ) {
          // set new value
          var oldValue = this.value;
          this.value = value;
          if (this.user) {
          try {
          this.cb.call(this.vm, value, oldValue);
          } catch (e) {
          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
          }
          } else {
          this.cb.call(this.vm, value, oldValue);
          }
          }
          }
          };
          
/**
 * Evaluate the value of the watcher.
 * This only gets called for lazy watchers.
 */
          Watcher.prototype.evaluate = function evaluate () {
          this.value = this.get();
          this.dirty = false;
          };
          
/**
 * Depend on all deps collected by this watcher.
 */
          Watcher.prototype.depend = function depend () {
          var this$1 = this;
          
          var i = this.deps.length;
          while (i--) {
          this$1.deps[i].depend();
          }
          };
          
/**
 * Remove self from all dependencies' subscriber list.
 */
          Watcher.prototype.teardown = function teardown () {
          var this$1 = this;
          
          if (this.active) {
          // remove self from vm's watcher list
          // this is a somewhat expensive operation so we skip it
          // if the vm is being destroyed.
          if (!this.vm._isBeingDestroyed) {
          remove(this.vm._watchers, this);
          }
          var i = this.deps.length;
          while (i--) {
          this$1.deps[i].removeSub(this$1);
          }
          this.active = false;
          }
          };
          
/**
 * Recursively traverse an object to evoke all converted
 * getters, so that every nested property inside the object
 * is collected as a "deep" dependency.
 */
          var seenObjects = new _Set();
          function traverse (val) {
          seenObjects.clear();
          _traverse(val, seenObjects);
          }
          
          function _traverse (val, seen) {
          var i, keys;
          var isA = Array.isArray(val);
          if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
          return
          }
          if (val.__ob__) {
          var depId = val.__ob__.dep.id;
          if (seen.has(depId)) {
          return
          }
          seen.add(depId);
          }
          if (isA) {
          i = val.length;
          while (i--) { _traverse(val[i], seen); }
          } else {
          keys = Object.keys(val);
          i = keys.length;
          while (i--) { _traverse(val[keys[i]], seen); }
          }
          }
          
/*  */
          
          var sharedPropertyDefinition = {
          enumerable: true,
          configurable: true,
          get: noop,
          set: noop
          };
          
          function proxy (target, sourceKey, key) {
          sharedPropertyDefinition.get = function proxyGetter () {
          return this[sourceKey][key]
          };
          sharedPropertyDefinition.set = function proxySetter (val) {
          this[sourceKey][key] = val;
          };
          Object.defineProperty(target, key, sharedPropertyDefinition);
          }
          
          function initState (vm) {
          vm._watchers = [];
          var opts = vm.$options;
          if (opts.props) { initProps(vm, opts.props); }
          if (opts.methods) { initMethods(vm, opts.methods); }
          if (opts.data) {
          initData(vm);
          } else {
          observe(vm._data = {}, true /* asRootData */);
          }
          if (opts.computed) { initComputed(vm, opts.computed); }
          if (opts.watch) { initWatch(vm, opts.watch); }
          }
          
          var isReservedProp = {
          key: 1,
          ref: 1,
          slot: 1
          };
          
          function initProps (vm, propsOptions) {
          var propsData = vm.$options.propsData || {};
          var props = vm._props = {};
          // cache prop keys so that future props updates can iterate using Array
          // instead of dynamic object key enumeration.
          var keys = vm.$options._propKeys = [];
          var isRoot = !vm.$parent;
          // root instance props should be converted
          observerState.shouldConvert = isRoot;
          var loop = function ( key ) {
          keys.push(key);
          var value = validateProp(key, propsOptions, propsData, vm);
          /* istanbul ignore else */
          {
          if (isReservedProp[key] || config.isReservedAttr(key)) {
          warn(
               ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
               vm
               );
          }
          defineReactive$$1(props, key, value, function () {
                            if (vm.$parent && !observerState.isSettingProps) {
                            warn(
                                 "Avoid mutating a prop directly since the value will be " +
                                 "overwritten whenever the parent component re-renders. " +
                                 "Instead, use a data or computed property based on the prop's " +
                                 "value. Prop being mutated: \"" + key + "\"",
                                 vm
                                 );
                            }
                            });
          }
          // static props are already proxied on the component's prototype
          // during Vue.extend(). We only need to proxy props defined at
          // instantiation here.
          if (!(key in vm)) {
          proxy(vm, "_props", key);
          }
          };
          
          for (var key in propsOptions) loop( key );
          observerState.shouldConvert = true;
          }
          
          function initData (vm) {
          var data = vm.$options.data;
          data = vm._data = typeof data === 'function'
          ? getData(data, vm)
          : data || {};
          if (!isPlainObject(data)) {
          data = {};
          "development" !== 'production' && warn(
                                                 'data functions should return an object:\n' +
                                                 'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
                                                 vm
                                                 );
          }
          // proxy data on instance
          var keys = Object.keys(data);
          var props = vm.$options.props;
          var i = keys.length;
          while (i--) {
          if (props && hasOwn(props, keys[i])) {
          "development" !== 'production' && warn(
                                                 "The data property \"" + (keys[i]) + "\" is already declared as a prop. " +
                                                 "Use prop default value instead.",
                                                 vm
                                                 );
          } else if (!isReserved(keys[i])) {
          proxy(vm, "_data", keys[i]);
          }
          }
          // observe data
          observe(data, true /* asRootData */);
          }
          
          function getData (data, vm) {
          try {
          return data.call(vm)
          } catch (e) {
          handleError(e, vm, "data()");
          return {}
          }
          }
          
          var computedWatcherOptions = { lazy: true };
          
          function initComputed (vm, computed) {
          var watchers = vm._computedWatchers = Object.create(null);
          
          for (var key in computed) {
          var userDef = computed[key];
          var getter = typeof userDef === 'function' ? userDef : userDef.get;
          {
          if (getter === undefined) {
          warn(
               ("No getter function has been defined for computed property \"" + key + "\"."),
               vm
               );
          getter = noop;
          }
          }
          // create internal watcher for the computed property.
          watchers[key] = new Watcher(vm, getter, noop, computedWatcherOptions);
          
          // component-defined computed properties are already defined on the
          // component prototype. We only need to define computed properties defined
          // at instantiation here.
          if (!(key in vm)) {
          defineComputed(vm, key, userDef);
          } else {
          if (key in vm.$data) {
          warn(("The computed property \"" + key + "\" is already defined in data."), vm);
          } else if (vm.$options.props && key in vm.$options.props) {
          warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
          }
          }
          }
          }
          
          function defineComputed (target, key, userDef) {
          if (typeof userDef === 'function') {
          sharedPropertyDefinition.get = createComputedGetter(key);
          sharedPropertyDefinition.set = noop;
          } else {
          sharedPropertyDefinition.get = userDef.get
          ? userDef.cache !== false
          ? createComputedGetter(key)
          : userDef.get
          : noop;
          sharedPropertyDefinition.set = userDef.set
          ? userDef.set
          : noop;
          }
          Object.defineProperty(target, key, sharedPropertyDefinition);
          }
          
          function createComputedGetter (key) {
          return function computedGetter () {
          var watcher = this._computedWatchers && this._computedWatchers[key];
          if (watcher) {
          if (watcher.dirty) {
          watcher.evaluate();
          }
          if (Dep.target) {
          watcher.depend();
          }
          return watcher.value
          }
          }
          }
          
          function initMethods (vm, methods) {
          var props = vm.$options.props;
          for (var key in methods) {
          vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
          {
          if (methods[key] == null) {
          warn(
               "method \"" + key + "\" has an undefined value in the component definition. " +
               "Did you reference the function correctly?",
               vm
               );
          }
          if (props && hasOwn(props, key)) {
          warn(
               ("method \"" + key + "\" has already been defined as a prop."),
               vm
               );
          }
          }
          }
          }
          
          function initWatch (vm, watch) {
          for (var key in watch) {
          var handler = watch[key];
          if (Array.isArray(handler)) {
          for (var i = 0; i < handler.length; i++) {
          createWatcher(vm, key, handler[i]);
          }
          } else {
          createWatcher(vm, key, handler);
          }
          }
          }
          
          function createWatcher (vm, key, handler) {
          var options;
          if (isPlainObject(handler)) {
          options = handler;
          handler = handler.handler;
          }
          if (typeof handler === 'string') {
          handler = vm[handler];
          }
          vm.$watch(key, handler, options);
          }
          
          function stateMixin (Vue) {
          // flow somehow has problems with directly declared definition object
          // when using Object.defineProperty, so we have to procedurally build up
          // the object here.
          var dataDef = {};
          dataDef.get = function () { return this._data };
          var propsDef = {};
          propsDef.get = function () { return this._props };
          {
          dataDef.set = function (newData) {
          warn(
               'Avoid replacing instance root $data. ' +
               'Use nested data properties instead.',
               this
               );
          };
          propsDef.set = function () {
          warn("$props is readonly.", this);
          };
          }
          Object.defineProperty(Vue.prototype, '$data', dataDef);
          Object.defineProperty(Vue.prototype, '$props', propsDef);
          
          Vue.prototype.$set = set;
          Vue.prototype.$delete = del;
          
          Vue.prototype.$watch = function (
                                           expOrFn,
                                           cb,
                                           options
                                           ) {
          var vm = this;
          options = options || {};
          options.user = true;
          var watcher = new Watcher(vm, expOrFn, cb, options);
          if (options.immediate) {
          cb.call(vm, watcher.value);
          }
          return function unwatchFn () {
          watcher.teardown();
          }
          };
          }
          
/*  */
          
          function initProvide (vm) {
          var provide = vm.$options.provide;
          if (provide) {
          vm._provided = typeof provide === 'function'
          ? provide.call(vm)
          : provide;
          }
          }
          
          function initInjections (vm) {
          var result = resolveInject(vm.$options.inject, vm);
          if (result) {
          Object.keys(result).forEach(function (key) {
                                      /* istanbul ignore else */
                                      {
                                      defineReactive$$1(vm, key, result[key], function () {
                                                        warn(
                                                             "Avoid mutating an injected value directly since the changes will be " +
                                                             "overwritten whenever the provided component re-renders. " +
                                                             "injection being mutated: \"" + key + "\"",
                                                             vm
                                                             );
                                                        });
                                      }
                                      });
          }
          }
          
          function resolveInject (inject, vm) {
          if (inject) {
          // inject is :any because flow is not smart enough to figure out cached
          // isArray here
          var isArray = Array.isArray(inject);
          var result = Object.create(null);
          var keys = isArray
          ? inject
          : hasSymbol
          ? Reflect.ownKeys(inject)
          : Object.keys(inject);
          
          for (var i = 0; i < keys.length; i++) {
          var key = keys[i];
          var provideKey = isArray ? key : inject[key];
          var source = vm;
          while (source) {
          if (source._provided && provideKey in source._provided) {
          result[key] = source._provided[provideKey];
          break
          }
          source = source.$parent;
          }
          }
          return result
          }
          }
          
/*  */
          
          function createFunctionalComponent (
                                              Ctor,
                                              propsData,
                                              data,
                                              context,
                                              children
                                              ) {
          var props = {};
          var propOptions = Ctor.options.props;
          if (isDef(propOptions)) {
          for (var key in propOptions) {
          props[key] = validateProp(key, propOptions, propsData);
          }
          } else {
          if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
          if (isDef(data.props)) { mergeProps(props, data.props); }
          }
          // ensure the createElement function in functional components
          // gets a unique context - this is necessary for correct named slot check
          var _context = Object.create(context);
          var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
          var vnode = Ctor.options.render.call(null, h, {
                                               data: data,
                                               props: props,
                                               children: children,
                                               parent: context,
                                               listeners: data.on || {},
                                               injections: resolveInject(Ctor.options.inject, context),
                                               slots: function () { return resolveSlots(children, context); }
                                               });
          if (vnode instanceof VNode) {
          vnode.functionalContext = context;
          if (data.slot) {
          (vnode.data || (vnode.data = {})).slot = data.slot;
          }
          }
          return vnode
          }
          
          function mergeProps (to, from) {
          for (var key in from) {
          to[camelize(key)] = from[key];
          }
          }
          
/*  */
          
          // hooks to be invoked on component VNodes during patch
          var componentVNodeHooks = {
          init: function init (
                               vnode,
                               hydrating,
                               parentElm,
                               refElm
                               ) {
          if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
          var child = vnode.componentInstance = createComponentInstanceForVnode(
                                                                                vnode,
                                                                                activeInstance,
                                                                                parentElm,
                                                                                refElm
                                                                                );
          child.$mount(hydrating ? vnode.elm : undefined, hydrating);
          } else if (vnode.data.keepAlive) {
          // kept-alive components, treat as a patch
          var mountedNode = vnode; // work around flow
          componentVNodeHooks.prepatch(mountedNode, mountedNode);
          }
          },
          
          prepatch: function prepatch (oldVnode, vnode) {
          var options = vnode.componentOptions;
          var child = vnode.componentInstance = oldVnode.componentInstance;
          updateChildComponent(
                               child,
                               options.propsData, // updated props
                               options.listeners, // updated listeners
                               vnode, // new parent vnode
                               options.children // new children
                               );
          },
          
          insert: function insert (vnode) {
          var context = vnode.context;
          var componentInstance = vnode.componentInstance;
          if (!componentInstance._isMounted) {
          componentInstance._isMounted = true;
          callHook(componentInstance, 'mounted');
          }
          if (vnode.data.keepAlive) {
          if (context._isMounted) {
          // vue-router#1212
          // During updates, a kept-alive component's child components may
          // change, so directly walking the tree here may call activated hooks
          // on incorrect children. Instead we push them into a queue which will
          // be processed after the whole patch process ended.
          queueActivatedComponent(componentInstance);
          } else {
          activateChildComponent(componentInstance, true /* direct */);
          }
          }
          },
          
          destroy: function destroy (vnode) {
          var componentInstance = vnode.componentInstance;
          if (!componentInstance._isDestroyed) {
          if (!vnode.data.keepAlive) {
          componentInstance.$destroy();
          } else {
          deactivateChildComponent(componentInstance, true /* direct */);
          }
          }
          }
          };
          
          var hooksToMerge = Object.keys(componentVNodeHooks);
          
          function createComponent (
                                    Ctor,
                                    data,
                                    context,
                                    children,
                                    tag
                                    ) {
          if (isUndef(Ctor)) {
          return
          }
          
          var baseCtor = context.$options._base;
          
          // plain options object: turn it into a constructor
          if (isObject(Ctor)) {
          Ctor = baseCtor.extend(Ctor);
          }
          
          // if at this stage it's not a constructor or an async component factory,
          // reject.
          if (typeof Ctor !== 'function') {
          {
          warn(("Invalid Component definition: " + (String(Ctor))), context);
          }
          return
          }
          
          // async component
          if (isUndef(Ctor.cid)) {
          Ctor = resolveAsyncComponent(Ctor, baseCtor, context);
          if (Ctor === undefined) {
          // return nothing if this is indeed an async component
          // wait for the callback to trigger parent update.
          return
          }
          }
          
          // resolve constructor options in case global mixins are applied after
          // component constructor creation
          resolveConstructorOptions(Ctor);
          
          data = data || {};
          
          // transform component v-model data into props & events
          if (isDef(data.model)) {
          transformModel(Ctor.options, data);
          }
          
          // extract props
          var propsData = extractPropsFromVNodeData(data, Ctor, tag);
          
          // functional component
          if (isTrue(Ctor.options.functional)) {
          return createFunctionalComponent(Ctor, propsData, data, context, children)
          }
          
          // extract listeners, since these needs to be treated as
          // child component listeners instead of DOM listeners
          var listeners = data.on;
          // replace with listeners with .native modifier
          data.on = data.nativeOn;
          
          if (isTrue(Ctor.options.abstract)) {
          // abstract components do not keep anything
          // other than props & listeners
          data = {};
          }
          
          // merge component management hooks onto the placeholder node
          mergeHooks(data);
          
          // return a placeholder vnode
          var name = Ctor.options.name || tag;
          var vnode = new VNode(
                                ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
                                data, undefined, undefined, undefined, context,
                                { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children }
                                );
          return vnode
          }
          
          function createComponentInstanceForVnode (
                                                    vnode, // we know it's MountedComponentVNode but flow doesn't
                                                    parent, // activeInstance in lifecycle state
                                                    parentElm,
                                                    refElm
                                                    ) {
          var vnodeComponentOptions = vnode.componentOptions;
          var options = {
          _isComponent: true,
          parent: parent,
          propsData: vnodeComponentOptions.propsData,
          _componentTag: vnodeComponentOptions.tag,
          _parentVnode: vnode,
          _parentListeners: vnodeComponentOptions.listeners,
          _renderChildren: vnodeComponentOptions.children,
          _parentElm: parentElm || null,
          _refElm: refElm || null
          };
          // check inline-template render functions
          var inlineTemplate = vnode.data.inlineTemplate;
          if (isDef(inlineTemplate)) {
          options.render = inlineTemplate.render;
          options.staticRenderFns = inlineTemplate.staticRenderFns;
          }
          return new vnodeComponentOptions.Ctor(options)
          }
          
          function mergeHooks (data) {
          if (!data.hook) {
          data.hook = {};
          }
          for (var i = 0; i < hooksToMerge.length; i++) {
          var key = hooksToMerge[i];
          var fromParent = data.hook[key];
          var ours = componentVNodeHooks[key];
          data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
          }
          }
          
          function mergeHook$1 (one, two) {
          return function (a, b, c, d) {
          one(a, b, c, d);
          two(a, b, c, d);
          }
          }
          
          // transform component v-model info (value and callback) into
          // prop and event handler respectively.
          function transformModel (options, data) {
          var prop = (options.model && options.model.prop) || 'value';
          var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
          var on = data.on || (data.on = {});
          if (isDef(on[event])) {
          on[event] = [data.model.callback].concat(on[event]);
          } else {
          on[event] = data.model.callback;
          }
          }
          
/*  */
          
          var SIMPLE_NORMALIZE = 1;
          var ALWAYS_NORMALIZE = 2;
          
          // wrapper function for providing a more flexible interface
          // without getting yelled at by flow
          function createElement (
                                  context,
                                  tag,
                                  data,
                                  children,
                                  normalizationType,
                                  alwaysNormalize
                                  ) {
          if (Array.isArray(data) || isPrimitive(data)) {
          normalizationType = children;
          children = data;
          data = undefined;
          }
          if (isTrue(alwaysNormalize)) {
          normalizationType = ALWAYS_NORMALIZE;
          }
          return _createElement(context, tag, data, children, normalizationType)
          }
          
          function _createElement (
                                   context,
                                   tag,
                                   data,
                                   children,
                                   normalizationType
                                   ) {
          if (isDef(data) && isDef((data).__ob__)) {
          "development" !== 'production' && warn(
                                                 "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
                                                 'Always create fresh vnode data objects in each render!',
                                                 context
                                                 );
          return createEmptyVNode()
          }
          if (!tag) {
          // in case of component :is set to falsy value
          return createEmptyVNode()
          }
          // support single function children as default scoped slot
          if (Array.isArray(children) &&
              typeof children[0] === 'function') {
          data = data || {};
          data.scopedSlots = { default: children[0] };
          children.length = 0;
          }
          if (normalizationType === ALWAYS_NORMALIZE) {
          children = normalizeChildren(children);
          } else if (normalizationType === SIMPLE_NORMALIZE) {
          children = simpleNormalizeChildren(children);
          }
          var vnode, ns;
          if (typeof tag === 'string') {
          var Ctor;
          ns = config.getTagNamespace(tag);
          if (config.isReservedTag(tag)) {
          // platform built-in elements
          vnode = new VNode(
                            config.parsePlatformTagName(tag), data, children,
                            undefined, undefined, context
                            );
          } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
          // component
          vnode = createComponent(Ctor, data, context, children, tag);
          } else {
          // unknown or unlisted namespaced elements
          // check at runtime because it may get assigned a namespace when its
          // parent normalizes children
          vnode = new VNode(
                            tag, data, children,
                            undefined, undefined, context
                            );
          }
          } else {
          // direct component options / constructor
          vnode = createComponent(tag, data, context, children);
          }
          if (vnode !== undefined) {
          if (ns) { applyNS(vnode, ns); }
          return vnode
          } else {
          return createEmptyVNode()
          }
          }
          
          function applyNS (vnode, ns) {
          vnode.ns = ns;
          if (vnode.tag === 'foreignObject') {
          // use default namespace inside foreignObject
          return
          }
          if (Array.isArray(vnode.children)) {
          for (var i = 0, l = vnode.children.length; i < l; i++) {
          var child = vnode.children[i];
          if (isDef(child.tag) && isUndef(child.ns)) {
          applyNS(child, ns);
          }
          }
          }
          }
          
/*  */
          
/**
 * Runtime helper for rendering v-for lists.
 */
          function renderList (
                               val,
                               render
                               ) {
          var ret, i, l, keys, key;
          if (Array.isArray(val) || typeof val === 'string') {
          ret = new Array(val.length);
          for (i = 0, l = val.length; i < l; i++) {
          ret[i] = render(val[i], i);
          }
          } else if (typeof val === 'number') {
          ret = new Array(val);
          for (i = 0; i < val; i++) {
          ret[i] = render(i + 1, i);
          }
          } else if (isObject(val)) {
          keys = Object.keys(val);
          ret = new Array(keys.length);
          for (i = 0, l = keys.length; i < l; i++) {
          key = keys[i];
          ret[i] = render(val[key], key, i);
          }
          }
          return ret
          }
          
/*  */
          
/**
 * Runtime helper for rendering <slot>
 */
          function renderSlot (
                               name,
                               fallback,
                               props,
                               bindObject
                               ) {
          var scopedSlotFn = this.$scopedSlots[name];
          if (scopedSlotFn) { // scoped slot
          props = props || {};
          if (bindObject) {
          extend(props, bindObject);
          }
          return scopedSlotFn(props) || fallback
          } else {
          var slotNodes = this.$slots[name];
          // warn duplicate slot usage
          if (slotNodes && "development" !== 'production') {
          slotNodes._rendered && warn(
                                      "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
                                      "- this will likely cause render errors.",
                                      this
                                      );
          slotNodes._rendered = true;
          }
          return slotNodes || fallback
          }
          }
          
/*  */
          
/**
 * Runtime helper for resolving filters
 */
          function resolveFilter (id) {
          return resolveAsset(this.$options, 'filters', id, true) || identity
          }
          
/*  */
          
/**
 * Runtime helper for checking keyCodes from config.
 */
          function checkKeyCodes (
                                  eventKeyCode,
                                  key,
                                  builtInAlias
                                  ) {
          var keyCodes = config.keyCodes[key] || builtInAlias;
          if (Array.isArray(keyCodes)) {
          return keyCodes.indexOf(eventKeyCode) === -1
          } else {
          return keyCodes !== eventKeyCode
          }
          }
          
/*  */
          
/**
 * Runtime helper for merging v-bind="object" into a VNode's data.
 */
          function bindObjectProps (
                                    data,
                                    tag,
                                    value,
                                    asProp
                                    ) {
          if (value) {
          if (!isObject(value)) {
          "development" !== 'production' && warn(
                                                 'v-bind without argument expects an Object or Array value',
                                                 this
                                                 );
          } else {
          if (Array.isArray(value)) {
          value = toObject(value);
          }
          var hash;
          for (var key in value) {
          if (key === 'class' || key === 'style') {
          hash = data;
          } else {
          var type = data.attrs && data.attrs.type;
          hash = asProp || config.mustUseProp(tag, type, key)
          ? data.domProps || (data.domProps = {})
          : data.attrs || (data.attrs = {});
          }
          if (!(key in hash)) {
          hash[key] = value[key];
          }
          }
          }
          }
          return data
          }
          
/*  */
          
/**
 * Runtime helper for rendering static trees.
 */
          function renderStatic (
                                 index,
                                 isInFor
                                 ) {
          var tree = this._staticTrees[index];
          // if has already-rendered static tree and not inside v-for,
          // we can reuse the same tree by doing a shallow clone.
          if (tree && !isInFor) {
          return Array.isArray(tree)
          ? cloneVNodes(tree)
          : cloneVNode(tree)
          }
          // otherwise, render a fresh tree.
          tree = this._staticTrees[index] =
          this.$options.staticRenderFns[index].call(this._renderProxy);
          markStatic(tree, ("__static__" + index), false);
          return tree
          }
          
/**
 * Runtime helper for v-once.
 * Effectively it means marking the node as static with a unique key.
 */
          function markOnce (
                             tree,
                             index,
                             key
                             ) {
          markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
          return tree
          }
          
          function markStatic (
                               tree,
                               key,
                               isOnce
                               ) {
          if (Array.isArray(tree)) {
          for (var i = 0; i < tree.length; i++) {
          if (tree[i] && typeof tree[i] !== 'string') {
          markStaticNode(tree[i], (key + "_" + i), isOnce);
          }
          }
          } else {
          markStaticNode(tree, key, isOnce);
          }
          }
          
          function markStaticNode (node, key, isOnce) {
          node.isStatic = true;
          node.key = key;
          node.isOnce = isOnce;
          }
          
/*  */
          
          function initRender (vm) {
          vm._vnode = null; // the root of the child tree
          vm._staticTrees = null;
          var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree
          var renderContext = parentVnode && parentVnode.context;
          vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
          vm.$scopedSlots = emptyObject;
          // bind the createElement fn to this instance
          // so that we get proper render context inside it.
          // args order: tag, data, children, normalizationType, alwaysNormalize
          // internal version is used by render functions compiled from templates
          vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
          // normalization is always applied for the public version, used in
          // user-written render functions.
          vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
          }
          
          function renderMixin (Vue) {
          Vue.prototype.$nextTick = function (fn) {
          return nextTick(fn, this)
          };
          
          Vue.prototype._render = function () {
          var vm = this;
          var ref = vm.$options;
          var render = ref.render;
          var staticRenderFns = ref.staticRenderFns;
          var _parentVnode = ref._parentVnode;
          
          if (vm._isMounted) {
          // clone slot nodes on re-renders
          for (var key in vm.$slots) {
          vm.$slots[key] = cloneVNodes(vm.$slots[key]);
          }
          }
          
          vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
          
          if (staticRenderFns && !vm._staticTrees) {
          vm._staticTrees = [];
          }
          // set parent vnode. this allows render functions to have access
          // to the data on the placeholder node.
          vm.$vnode = _parentVnode;
          // render self
          var vnode;
          try {
          vnode = render.call(vm._renderProxy, vm.$createElement);
          } catch (e) {
          handleError(e, vm, "render function");
          // return error render result,
          // or previous vnode to prevent render error causing blank component
          /* istanbul ignore else */
          {
          vnode = vm.$options.renderError
          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
          : vm._vnode;
          }
          }
          // return empty vnode in case the render function errored out
          if (!(vnode instanceof VNode)) {
          if ("development" !== 'production' && Array.isArray(vnode)) {
          warn(
               'Multiple root nodes returned from render function. Render function ' +
               'should return a single root node.',
               vm
               );
          }
          vnode = createEmptyVNode();
          }
          // set parent
          vnode.parent = _parentVnode;
          return vnode
          };
          
          // internal render helpers.
          // these are exposed on the instance prototype to reduce generated render
          // code size.
          Vue.prototype._o = markOnce;
          Vue.prototype._n = toNumber;
          Vue.prototype._s = _toString;
          Vue.prototype._l = renderList;
          Vue.prototype._t = renderSlot;
          Vue.prototype._q = looseEqual;
          Vue.prototype._i = looseIndexOf;
          Vue.prototype._m = renderStatic;
          Vue.prototype._f = resolveFilter;
          Vue.prototype._k = checkKeyCodes;
          Vue.prototype._b = bindObjectProps;
          Vue.prototype._v = createTextVNode;
          Vue.prototype._e = createEmptyVNode;
          Vue.prototype._u = resolveScopedSlots;
          }
          
/*  */
          
          var uid$1 = 0;
          
          function initMixin (Vue) {
          Vue.prototype._init = function (options) {
          var vm = this;
          // a uid
          vm._uid = uid$1++;
          
          var startTag, endTag;
          /* istanbul ignore if */
          if ("development" !== 'production' && config.performance && mark) {
          startTag = "vue-perf-init:" + (vm._uid);
          endTag = "vue-perf-end:" + (vm._uid);
          mark(startTag);
          }
          
          // a flag to avoid this being observed
          vm._isVue = true;
          // merge options
          if (options && options._isComponent) {
          // optimize internal component instantiation
          // since dynamic options merging is pretty slow, and none of the
          // internal component options needs special treatment.
          initInternalComponent(vm, options);
          } else {
          vm.$options = mergeOptions(
                                     resolveConstructorOptions(vm.constructor),
                                     options || {},
                                     vm
                                     );
          }
          /* istanbul ignore else */
          {
          initProxy(vm);
          }
          // expose real self
          vm._self = vm;
          initLifecycle(vm);
          initEvents(vm);
          initRender(vm);
          callHook(vm, 'beforeCreate');
          initInjections(vm); // resolve injections before data/props
          initState(vm);
          initProvide(vm); // resolve provide after data/props
          callHook(vm, 'created');
          
          /* istanbul ignore if */
          if ("development" !== 'production' && config.performance && mark) {
          vm._name = formatComponentName(vm, false);
          mark(endTag);
          measure(((vm._name) + " init"), startTag, endTag);
          }
          
          if (vm.$options.el) {
          vm.$mount(vm.$options.el);
          }
          };
          }
          
          function initInternalComponent (vm, options) {
          var opts = vm.$options = Object.create(vm.constructor.options);
          // doing this because it's faster than dynamic enumeration.
          opts.parent = options.parent;
          opts.propsData = options.propsData;
          opts._parentVnode = options._parentVnode;
          opts._parentListeners = options._parentListeners;
          opts._renderChildren = options._renderChildren;
          opts._componentTag = options._componentTag;
          opts._parentElm = options._parentElm;
          opts._refElm = options._refElm;
          if (options.render) {
          opts.render = options.render;
          opts.staticRenderFns = options.staticRenderFns;
          }
          }
          
          function resolveConstructorOptions (Ctor) {
          var options = Ctor.options;
          if (Ctor.super) {
          var superOptions = resolveConstructorOptions(Ctor.super);
          var cachedSuperOptions = Ctor.superOptions;
          if (superOptions !== cachedSuperOptions) {
          // super option changed,
          // need to resolve new options.
          Ctor.superOptions = superOptions;
          // check if there are any late-modified/attached options (#4976)
          var modifiedOptions = resolveModifiedOptions(Ctor);
          // update base extend options
          if (modifiedOptions) {
          extend(Ctor.extendOptions, modifiedOptions);
          }
          options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
          if (options.name) {
          options.components[options.name] = Ctor;
          }
          }
          }
          return options
          }
          
          function resolveModifiedOptions (Ctor) {
          var modified;
          var latest = Ctor.options;
          var extended = Ctor.extendOptions;
          var sealed = Ctor.sealedOptions;
          for (var key in latest) {
          if (latest[key] !== sealed[key]) {
          if (!modified) { modified = {}; }
          modified[key] = dedupe(latest[key], extended[key], sealed[key]);
          }
          }
          return modified
          }
          
          function dedupe (latest, extended, sealed) {
          // compare latest and sealed to ensure lifecycle hooks won't be duplicated
          // between merges
          if (Array.isArray(latest)) {
          var res = [];
          sealed = Array.isArray(sealed) ? sealed : [sealed];
          extended = Array.isArray(extended) ? extended : [extended];
          for (var i = 0; i < latest.length; i++) {
          // push original options and not sealed options to exclude duplicated options
          if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
          res.push(latest[i]);
          }
          }
          return res
          } else {
          return latest
          }
          }
          
          function Vue$3 (options) {
          if ("development" !== 'production' &&
              !(this instanceof Vue$3)) {
          warn('Vue is a constructor and should be called with the `new` keyword');
          }
          this._init(options);
          }
          
          initMixin(Vue$3);
          stateMixin(Vue$3);
          eventsMixin(Vue$3);
          lifecycleMixin(Vue$3);
          renderMixin(Vue$3);
          
/*  */
          
          function initUse (Vue) {
          Vue.use = function (plugin) {
          /* istanbul ignore if */
          if (plugin.installed) {
          return
          }
          // additional parameters
          var args = toArray(arguments, 1);
          args.unshift(this);
          if (typeof plugin.install === 'function') {
          plugin.install.apply(plugin, args);
          } else if (typeof plugin === 'function') {
          plugin.apply(null, args);
          }
          plugin.installed = true;
          return this
          };
          }
          
/*  */
          
          function initMixin$1 (Vue) {
          Vue.mixin = function (mixin) {
          this.options = mergeOptions(this.options, mixin);
          };
          }
          
/*  */
          
          function initExtend (Vue) {
          /**
           * Each instance constructor, including Vue, has a unique
           * cid. This enables us to create wrapped "child
           * constructors" for prototypal inheritance and cache them.
           */
          Vue.cid = 0;
          var cid = 1;
          
          /**
           * Class inheritance
           */
          Vue.extend = function (extendOptions) {
          extendOptions = extendOptions || {};
          var Super = this;
          var SuperId = Super.cid;
          var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
          if (cachedCtors[SuperId]) {
          return cachedCtors[SuperId]
          }
          
          var name = extendOptions.name || Super.options.name;
          {
          if (!/^[a-zA-Z][\w-]*$/.test(name)) {
          warn(
               'Invalid component name: "' + name + '". Component names ' +
               'can only contain alphanumeric characters and the hyphen, ' +
               'and must start with a letter.'
               );
          }
          }
          
          var Sub = function VueComponent (options) {
          this._init(options);
          };
          Sub.prototype = Object.create(Super.prototype);
          Sub.prototype.constructor = Sub;
          Sub.cid = cid++;
          Sub.options = mergeOptions(
                                     Super.options,
                                     extendOptions
                                     );
          Sub['super'] = Super;
          
          // For props and computed properties, we define the proxy getters on
          // the Vue instances at extension time, on the extended prototype. This
          // avoids Object.defineProperty calls for each instance created.
          if (Sub.options.props) {
          initProps$1(Sub);
          }
          if (Sub.options.computed) {
          initComputed$1(Sub);
          }
          
          // allow further extension/mixin/plugin usage
          Sub.extend = Super.extend;
          Sub.mixin = Super.mixin;
          Sub.use = Super.use;
          
          // create asset registers, so extended classes
          // can have their private assets too.
          ASSET_TYPES.forEach(function (type) {
                              Sub[type] = Super[type];
                              });
          // enable recursive self-lookup
          if (name) {
          Sub.options.components[name] = Sub;
          }
          
          // keep a reference to the super options at extension time.
          // later at instantiation we can check if Super's options have
          // been updated.
          Sub.superOptions = Super.options;
          Sub.extendOptions = extendOptions;
          Sub.sealedOptions = extend({}, Sub.options);
          
          // cache constructor
          cachedCtors[SuperId] = Sub;
          return Sub
          };
          }
          
          function initProps$1 (Comp) {
          var props = Comp.options.props;
          for (var key in props) {
          proxy(Comp.prototype, "_props", key);
          }
          }
          
          function initComputed$1 (Comp) {
          var computed = Comp.options.computed;
          for (var key in computed) {
          defineComputed(Comp.prototype, key, computed[key]);
          }
          }
          
/*  */
          
          function initAssetRegisters (Vue) {
          /**
           * Create asset registration methods.
           */
          ASSET_TYPES.forEach(function (type) {
                              Vue[type] = function (
                                                    id,
                                                    definition
                                                    ) {
                              if (!definition) {
                              return this.options[type + 's'][id]
                              } else {
                              /* istanbul ignore if */
                              {
                              if (type === 'component' && config.isReservedTag(id)) {
                              warn(
                                   'Do not use built-in or reserved HTML elements as component ' +
                                   'id: ' + id
                                   );
                              }
                              }
                              if (type === 'component' && isPlainObject(definition)) {
                              definition.name = definition.name || id;
                              definition = this.options._base.extend(definition);
                              }
                              if (type === 'directive' && typeof definition === 'function') {
                              definition = { bind: definition, update: definition };
                              }
                              this.options[type + 's'][id] = definition;
                              return definition
                              }
                              };
                              });
          }
          
/*  */
          
          var patternTypes = [String, RegExp];
          
          function getComponentName (opts) {
          return opts && (opts.Ctor.options.name || opts.tag)
          }
          
          function matches (pattern, name) {
          if (typeof pattern === 'string') {
          return pattern.split(',').indexOf(name) > -1
          } else if (isRegExp(pattern)) {
          return pattern.test(name)
          }
          /* istanbul ignore next */
          return false
          }
          
          function pruneCache (cache, current, filter) {
          for (var key in cache) {
          var cachedNode = cache[key];
          if (cachedNode) {
          var name = getComponentName(cachedNode.componentOptions);
          if (name && !filter(name)) {
          if (cachedNode !== current) {
          pruneCacheEntry(cachedNode);
          }
          cache[key] = null;
          }
          }
          }
          }
          
          function pruneCacheEntry (vnode) {
          if (vnode) {
          vnode.componentInstance.$destroy();
          }
          }
          
          var KeepAlive = {
          name: 'keep-alive',
          abstract: true,
          
          props: {
          include: patternTypes,
          exclude: patternTypes
          },
          
          created: function created () {
          this.cache = Object.create(null);
          },
          
          destroyed: function destroyed () {
          var this$1 = this;
          
          for (var key in this$1.cache) {
          pruneCacheEntry(this$1.cache[key]);
          }
          },
          
          watch: {
          include: function include (val) {
          pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); });
          },
          exclude: function exclude (val) {
          pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); });
          }
          },
          
          render: function render () {
          var vnode = getFirstComponentChild(this.$slots.default);
          var componentOptions = vnode && vnode.componentOptions;
          if (componentOptions) {
          // check pattern
          var name = getComponentName(componentOptions);
          if (name && (
                       (this.include && !matches(this.include, name)) ||
                       (this.exclude && matches(this.exclude, name))
                       )) {
          return vnode
          }
          var key = vnode.key == null
          // same constructor may get registered as different local components
          // so cid alone is not enough (#3269)
          ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
          : vnode.key;
          if (this.cache[key]) {
          vnode.componentInstance = this.cache[key].componentInstance;
          } else {
          this.cache[key] = vnode;
          }
          vnode.data.keepAlive = true;
          }
          return vnode
          }
          };
          
          var builtInComponents = {
          KeepAlive: KeepAlive
          };
          
/*  */
          
          function initGlobalAPI (Vue) {
          // config
          var configDef = {};
          configDef.get = function () { return config; };
          {
          configDef.set = function () {
          warn(
               'Do not replace the Vue.config object, set individual fields instead.'
               );
          };
          }
          Object.defineProperty(Vue, 'config', configDef);
          
          // exposed util methods.
          // NOTE: these are not considered part of the public API - avoid relying on
          // them unless you are aware of the risk.
          Vue.util = {
          warn: warn,
          extend: extend,
          mergeOptions: mergeOptions,
          defineReactive: defineReactive$$1
          };
          
          Vue.set = set;
          Vue.delete = del;
          Vue.nextTick = nextTick;
          
          Vue.options = Object.create(null);
          ASSET_TYPES.forEach(function (type) {
                              Vue.options[type + 's'] = Object.create(null);
                              });
          
          // this is used to identify the "base" constructor to extend all plain-object
          // components with in Weex's multi-instance scenarios.
          Vue.options._base = Vue;
          
          extend(Vue.options.components, builtInComponents);
          
          initUse(Vue);
          initMixin$1(Vue);
          initExtend(Vue);
          initAssetRegisters(Vue);
          }
          
          initGlobalAPI(Vue$3);
          
          Object.defineProperty(Vue$3.prototype, '$isServer', {
                                get: isServerRendering
                                });
          
          Vue$3.version = '2.3.0';
          
/*  */
          
          // these are reserved for web because they are directly compiled away
          // during template compilation
          var isReservedAttr = makeMap('style,class');
          
          // attributes that should be using props for binding
          var acceptValue = makeMap('input,textarea,option,select');
          var mustUseProp = function (tag, type, attr) {
          return (
                  (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
                  (attr === 'selected' && tag === 'option') ||
                  (attr === 'checked' && tag === 'input') ||
                  (attr === 'muted' && tag === 'video')
                  )
          };
          
          var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
          
          var isBooleanAttr = makeMap(
                                      'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
                                      'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
                                      'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
                                      'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
                                      'required,reversed,scoped,seamless,selected,sortable,translate,' +
                                      'truespeed,typemustmatch,visible'
                                      );
          
          var xlinkNS = 'http://www.w3.org/1999/xlink';
          
          var isXlink = function (name) {
          return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
          };
          
          var getXlinkProp = function (name) {
          return isXlink(name) ? name.slice(6, name.length) : ''
          };
          
          var isFalsyAttrValue = function (val) {
          return val == null || val === false
          };
          
/*  */
          
          function genClassForVnode (vnode) {
          var data = vnode.data;
          var parentNode = vnode;
          var childNode = vnode;
          while (isDef(childNode.componentInstance)) {
          childNode = childNode.componentInstance._vnode;
          if (childNode.data) {
          data = mergeClassData(childNode.data, data);
          }
          }
          while (isDef(parentNode = parentNode.parent)) {
          if (parentNode.data) {
          data = mergeClassData(data, parentNode.data);
          }
          }
          return genClassFromData(data)
          }
          
          function mergeClassData (child, parent) {
          return {
          staticClass: concat(child.staticClass, parent.staticClass),
          class: isDef(child.class)
          ? [child.class, parent.class]
          : parent.class
          }
          }
          
          function genClassFromData (data) {
          var dynamicClass = data.class;
          var staticClass = data.staticClass;
          if (isDef(staticClass) || isDef(dynamicClass)) {
          return concat(staticClass, stringifyClass(dynamicClass))
          }
          /* istanbul ignore next */
          return ''
          }
          
          function concat (a, b) {
          return a ? b ? (a + ' ' + b) : a : (b || '')
          }
          
          function stringifyClass (value) {
          if (isUndef(value)) {
          return ''
          }
          if (typeof value === 'string') {
          return value
          }
          var res = '';
          if (Array.isArray(value)) {
          var stringified;
          for (var i = 0, l = value.length; i < l; i++) {
          if (isDef(value[i])) {
          if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
          res += stringified + ' ';
          }
          }
          }
          return res.slice(0, -1)
          }
          if (isObject(value)) {
          for (var key in value) {
          if (value[key]) { res += key + ' '; }
          }
          return res.slice(0, -1)
          }
          /* istanbul ignore next */
          return res
          }
          
/*  */
          
          var namespaceMap = {
          svg: 'http://www.w3.org/2000/svg',
          math: 'http://www.w3.org/1998/Math/MathML'
          };
          
          var isHTMLTag = makeMap(
                                  'html,body,base,head,link,meta,style,title,' +
                                  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
                                  'div,dd,dl,dt,figcaption,figure,hr,img,li,main,ol,p,pre,ul,' +
                                  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
                                  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
                                  'embed,object,param,source,canvas,script,noscript,del,ins,' +
                                  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
                                  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
                                  'output,progress,select,textarea,' +
                                  'details,dialog,menu,menuitem,summary,' +
                                  'content,element,shadow,template'
                                  );
          
          // this map is intentionally selective, only covering SVG elements that may
          // contain child elements.
          var isSVG = makeMap(
                              'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
                              'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
                              'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
                              true
                              );
          
          var isPreTag = function (tag) { return tag === 'pre'; };
          
          var isReservedTag = function (tag) {
          return isHTMLTag(tag) || isSVG(tag)
          };
          
          function getTagNamespace (tag) {
          if (isSVG(tag)) {
          return 'svg'
          }
          // basic support for MathML
          // note it doesn't support other MathML elements being component roots
          if (tag === 'math') {
          return 'math'
          }
          }
          
          var unknownElementCache = Object.create(null);
          function isUnknownElement (tag) {
          /* istanbul ignore if */
          if (!inBrowser) {
          return true
          }
          if (isReservedTag(tag)) {
          return false
          }
          tag = tag.toLowerCase();
          /* istanbul ignore if */
          if (unknownElementCache[tag] != null) {
          return unknownElementCache[tag]
          }
          var el = document.createElement(tag);
          if (tag.indexOf('-') > -1) {
          // http://stackoverflow.com/a/28210364/1070244
          return (unknownElementCache[tag] = (
                                              el.constructor === window.HTMLUnknownElement ||
                                              el.constructor === window.HTMLElement
                                              ))
          } else {
          return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
          }
          }
          
/*  */
          
/**
 * Query an element selector if it's not an element already.
 */
          function query (el) {
          if (typeof el === 'string') {
          var selected = document.querySelector(el);
          if (!selected) {
          "development" !== 'production' && warn(
                                                 'Cannot find element: ' + el
                                                 );
          return document.createElement('div')
          }
          return selected
          } else {
          return el
          }
          }
          
/*  */
          
          function createElement$1 (tagName, vnode) {
          var elm = document.createElement(tagName);
          if (tagName !== 'select') {
          return elm
          }
          // false or null will remove the attribute but undefined will not
          if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
          elm.setAttribute('multiple', 'multiple');
          }
          return elm
          }
          
          function createElementNS (namespace, tagName) {
          return document.createElementNS(namespaceMap[namespace], tagName)
          }
          
          function createTextNode (text) {
          return document.createTextNode(text)
          }
          
          function createComment (text) {
          return document.createComment(text)
          }
          
          function insertBefore (parentNode, newNode, referenceNode) {
          parentNode.insertBefore(newNode, referenceNode);
          }
          
          function removeChild (node, child) {
          node.removeChild(child);
          }
          
          function appendChild (node, child) {
          node.appendChild(child);
          }
          
          function parentNode (node) {
          return node.parentNode
          }
          
          function nextSibling (node) {
          return node.nextSibling
          }
          
          function tagName (node) {
          return node.tagName
          }
          
          function setTextContent (node, text) {
          node.textContent = text;
          }
          
          function setAttribute (node, key, val) {
          node.setAttribute(key, val);
          }
          
          
          var nodeOps = Object.freeze({
                                      createElement: createElement$1,
                                      createElementNS: createElementNS,
                                      createTextNode: createTextNode,
                                      createComment: createComment,
                                      insertBefore: insertBefore,
                                      removeChild: removeChild,
                                      appendChild: appendChild,
                                      parentNode: parentNode,
                                      nextSibling: nextSibling,
                                      tagName: tagName,
                                      setTextContent: setTextContent,
                                      setAttribute: setAttribute
                                      });
          
/*  */
          
          var ref = {
          create: function create (_, vnode) {
          registerRef(vnode);
          },
          update: function update (oldVnode, vnode) {
          if (oldVnode.data.ref !== vnode.data.ref) {
          registerRef(oldVnode, true);
          registerRef(vnode);
          }
          },
          destroy: function destroy (vnode) {
          registerRef(vnode, true);
          }
          };
          
          function registerRef (vnode, isRemoval) {
          var key = vnode.data.ref;
          if (!key) { return }
          
          var vm = vnode.context;
          var ref = vnode.componentInstance || vnode.elm;
          var refs = vm.$refs;
          if (isRemoval) {
          if (Array.isArray(refs[key])) {
          remove(refs[key], ref);
          } else if (refs[key] === ref) {
          refs[key] = undefined;
          }
          } else {
          if (vnode.data.refInFor) {
          if (Array.isArray(refs[key]) && refs[key].indexOf(ref) < 0) {
          refs[key].push(ref);
          } else {
          refs[key] = [ref];
          }
          } else {
          refs[key] = ref;
          }
          }
          }
          
/**
 * Virtual DOM patching algorithm based on Snabbdom by
 * Simon Friis Vindum (@paldepind)
 * Licensed under the MIT License
 * https://github.com/paldepind/snabbdom/blob/master/LICENSE
 *
 * modified by Evan You (@yyx990803)
 *
 
 /*
 * Not type-checking this because this file is perf-critical and the cost
 * of making flow understand it is not worth it.
 */
          
          var emptyNode = new VNode('', {}, []);
          
          var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
          
          function sameVnode (a, b) {
          return (
                  a.key === b.key &&
                  a.tag === b.tag &&
                  a.isComment === b.isComment &&
                  isDef(a.data) === isDef(b.data) &&
                  sameInputType(a, b)
                  )
          }
          
          // Some browsers do not support dynamically changing type for <input>
          // so they need to be treated as different nodes
          function sameInputType (a, b) {
          if (a.tag !== 'input') { return true }
          var i;
          var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
          var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
          return typeA === typeB
          }
          
          function createKeyToOldIdx (children, beginIdx, endIdx) {
          var i, key;
          var map = {};
          for (i = beginIdx; i <= endIdx; ++i) {
          key = children[i].key;
          if (isDef(key)) { map[key] = i; }
          }
          return map
          }
          
          function createPatchFunction (backend) {
          var i, j;
          var cbs = {};
          
          var modules = backend.modules;
          var nodeOps = backend.nodeOps;
          
          for (i = 0; i < hooks.length; ++i) {
          cbs[hooks[i]] = [];
          for (j = 0; j < modules.length; ++j) {
          if (isDef(modules[j][hooks[i]])) {
          cbs[hooks[i]].push(modules[j][hooks[i]]);
          }
          }
          }
          
          function emptyNodeAt (elm) {
          return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
          }
          
          function createRmCb (childElm, listeners) {
          function remove$$1 () {
          if (--remove$$1.listeners === 0) {
          removeNode(childElm);
          }
          }
          remove$$1.listeners = listeners;
          return remove$$1
          }
          
          function removeNode (el) {
          var parent = nodeOps.parentNode(el);
          // element may have already been removed due to v-html / v-text
          if (isDef(parent)) {
          nodeOps.removeChild(parent, el);
          }
          }
          
          var inPre = 0;
          function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
          vnode.isRootInsert = !nested; // for transition enter check
          if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
          return
          }
          
          var data = vnode.data;
          var children = vnode.children;
          var tag = vnode.tag;
          if (isDef(tag)) {
          {
          if (data && data.pre) {
          inPre++;
          }
          if (
              !inPre &&
              !vnode.ns &&
              !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
              config.isUnknownElement(tag)
              ) {
          warn(
               'Unknown custom element: <' + tag + '> - did you ' +
               'register the component correctly? For recursive components, ' +
               'make sure to provide the "name" option.',
               vnode.context
               );
          }
          }
          vnode.elm = vnode.ns
          ? nodeOps.createElementNS(vnode.ns, tag)
          : nodeOps.createElement(tag, vnode);
          setScope(vnode);
          
          /* istanbul ignore if */
          {
          createChildren(vnode, children, insertedVnodeQueue);
          if (isDef(data)) {
          invokeCreateHooks(vnode, insertedVnodeQueue);
          }
          insert(parentElm, vnode.elm, refElm);
          }
          
          if ("development" !== 'production' && data && data.pre) {
          inPre--;
          }
          } else if (isTrue(vnode.isComment)) {
          vnode.elm = nodeOps.createComment(vnode.text);
          insert(parentElm, vnode.elm, refElm);
          } else {
          vnode.elm = nodeOps.createTextNode(vnode.text);
          insert(parentElm, vnode.elm, refElm);
          }
          }
          
          function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
          var i = vnode.data;
          if (isDef(i)) {
          var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
          if (isDef(i = i.hook) && isDef(i = i.init)) {
          i(vnode, false /* hydrating */, parentElm, refElm);
          }
          // after calling the init hook, if the vnode is a child component
          // it should've created a child instance and mounted it. the child
          // component also has set the placeholder vnode's elm.
          // in that case we can just return the element and be done.
          if (isDef(vnode.componentInstance)) {
          initComponent(vnode, insertedVnodeQueue);
          if (isTrue(isReactivated)) {
          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
          }
          return true
          }
          }
          }
          
          function initComponent (vnode, insertedVnodeQueue) {
          if (isDef(vnode.data.pendingInsert)) {
          insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
          }
          vnode.elm = vnode.componentInstance.$el;
          if (isPatchable(vnode)) {
          invokeCreateHooks(vnode, insertedVnodeQueue);
          setScope(vnode);
          } else {
          // empty component root.
          // skip all element-related modules except for ref (#3455)
          registerRef(vnode);
          // make sure to invoke the insert hook
          insertedVnodeQueue.push(vnode);
          }
          }
          
          function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
          var i;
          // hack for #4339: a reactivated component with inner transition
          // does not trigger because the inner node's created hooks are not called
          // again. It's not ideal to involve module-specific logic in here but
          // there doesn't seem to be a better way to do it.
          var innerNode = vnode;
          while (innerNode.componentInstance) {
          innerNode = innerNode.componentInstance._vnode;
          if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
          for (i = 0; i < cbs.activate.length; ++i) {
          cbs.activate[i](emptyNode, innerNode);
          }
          insertedVnodeQueue.push(innerNode);
          break
          }
          }
          // unlike a newly created component,
          // a reactivated keep-alive component doesn't insert itself
          insert(parentElm, vnode.elm, refElm);
          }
          
          function insert (parent, elm, ref) {
          if (isDef(parent)) {
          if (isDef(ref)) {
          if (ref.parentNode === parent) {
          nodeOps.insertBefore(parent, elm, ref);
          }
          } else {
          nodeOps.appendChild(parent, elm);
          }
          }
          }
          
          function createChildren (vnode, children, insertedVnodeQueue) {
          if (Array.isArray(children)) {
          for (var i = 0; i < children.length; ++i) {
          createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
          }
          } else if (isPrimitive(vnode.text)) {
          nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
          }
          }
          
          function isPatchable (vnode) {
          while (vnode.componentInstance) {
          vnode = vnode.componentInstance._vnode;
          }
          return isDef(vnode.tag)
          }
          
          function invokeCreateHooks (vnode, insertedVnodeQueue) {
          for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
          cbs.create[i$1](emptyNode, vnode);
          }
          i = vnode.data.hook; // Reuse variable
          if (isDef(i)) {
          if (isDef(i.create)) { i.create(emptyNode, vnode); }
          if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
          }
          }
          
          // set scope id attribute for scoped CSS.
          // this is implemented as a special case to avoid the overhead
          // of going through the normal attribute patching process.
          function setScope (vnode) {
          var i;
          var ancestor = vnode;
          while (ancestor) {
          if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
          nodeOps.setAttribute(vnode.elm, i, '');
          }
          ancestor = ancestor.parent;
          }
          // for slot content they should also get the scopeId from the host instance.
          if (isDef(i = activeInstance) &&
              i !== vnode.context &&
              isDef(i = i.$options._scopeId)) {
          nodeOps.setAttribute(vnode.elm, i, '');
          }
          }
          
          function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
          for (; startIdx <= endIdx; ++startIdx) {
          createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
          }
          }
          
          function invokeDestroyHook (vnode) {
          var i, j;
          var data = vnode.data;
          if (isDef(data)) {
          if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
          for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
          }
          if (isDef(i = vnode.children)) {
          for (j = 0; j < vnode.children.length; ++j) {
          invokeDestroyHook(vnode.children[j]);
          }
          }
          }
          
          function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
          for (; startIdx <= endIdx; ++startIdx) {
          var ch = vnodes[startIdx];
          if (isDef(ch)) {
          if (isDef(ch.tag)) {
          removeAndInvokeRemoveHook(ch);
          invokeDestroyHook(ch);
          } else { // Text node
          removeNode(ch.elm);
          }
          }
          }
          }
          
          function removeAndInvokeRemoveHook (vnode, rm) {
          if (isDef(rm) || isDef(vnode.data)) {
          var i;
          var listeners = cbs.remove.length + 1;
          if (isDef(rm)) {
          // we have a recursively passed down rm callback
          // increase the listeners count
          rm.listeners += listeners;
          } else {
          // directly removing
          rm = createRmCb(vnode.elm, listeners);
          }
          // recursively invoke hooks on child component root node
          if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
          removeAndInvokeRemoveHook(i, rm);
          }
          for (i = 0; i < cbs.remove.length; ++i) {
          cbs.remove[i](vnode, rm);
          }
          if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
          i(vnode, rm);
          } else {
          rm();
          }
          } else {
          removeNode(vnode.elm);
          }
          }
          
          function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
          var oldStartIdx = 0;
          var newStartIdx = 0;
          var oldEndIdx = oldCh.length - 1;
          var oldStartVnode = oldCh[0];
          var oldEndVnode = oldCh[oldEndIdx];
          var newEndIdx = newCh.length - 1;
          var newStartVnode = newCh[0];
          var newEndVnode = newCh[newEndIdx];
          var oldKeyToIdx, idxInOld, elmToMove, refElm;
          
          // removeOnly is a special flag used only by <transition-group>
          // to ensure removed elements stay in correct relative positions
          // during leaving transitions
          var canMove = !removeOnly;
          
          while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
          if (isUndef(oldStartVnode)) {
          oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
          } else if (isUndef(oldEndVnode)) {
          oldEndVnode = oldCh[--oldEndIdx];
          } else if (sameVnode(oldStartVnode, newStartVnode)) {
          patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
          oldStartVnode = oldCh[++oldStartIdx];
          newStartVnode = newCh[++newStartIdx];
          } else if (sameVnode(oldEndVnode, newEndVnode)) {
          patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
          oldEndVnode = oldCh[--oldEndIdx];
          newEndVnode = newCh[--newEndIdx];
          } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
          patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
          canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
          oldStartVnode = oldCh[++oldStartIdx];
          newEndVnode = newCh[--newEndIdx];
          } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
          patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
          canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
          oldEndVnode = oldCh[--oldEndIdx];
          newStartVnode = newCh[++newStartIdx];
          } else {
          if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
          idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
          if (isUndef(idxInOld)) { // New element
          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
          newStartVnode = newCh[++newStartIdx];
          } else {
          elmToMove = oldCh[idxInOld];
          /* istanbul ignore if */
          if ("development" !== 'production' && !elmToMove) {
          warn(
               'It seems there are duplicate keys that is causing an update error. ' +
               'Make sure each v-for item has a unique key.'
               );
          }
          if (sameVnode(elmToMove, newStartVnode)) {
          patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
          oldCh[idxInOld] = undefined;
          canMove && nodeOps.insertBefore(parentElm, newStartVnode.elm, oldStartVnode.elm);
          newStartVnode = newCh[++newStartIdx];
          } else {
          // same key but different element. treat as new element
          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
          newStartVnode = newCh[++newStartIdx];
          }
          }
          }
          }
          if (oldStartIdx > oldEndIdx) {
          refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
          addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
          } else if (newStartIdx > newEndIdx) {
          removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
          }
          }
          
          function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
          if (oldVnode === vnode) {
          return
          }
          // reuse element for static trees.
          // note we only do this if the vnode is cloned -
          // if the new node is not cloned it means the render functions have been
          // reset by the hot-reload-api and we need to do a proper re-render.
          if (isTrue(vnode.isStatic) &&
              isTrue(oldVnode.isStatic) &&
              vnode.key === oldVnode.key &&
              (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))) {
          vnode.elm = oldVnode.elm;
          vnode.componentInstance = oldVnode.componentInstance;
          return
          }
          var i;
          var data = vnode.data;
          if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
          i(oldVnode, vnode);
          }
          var elm = vnode.elm = oldVnode.elm;
          var oldCh = oldVnode.children;
          var ch = vnode.children;
          if (isDef(data) && isPatchable(vnode)) {
          for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
          if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
          }
          if (isUndef(vnode.text)) {
          if (isDef(oldCh) && isDef(ch)) {
          if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
          } else if (isDef(ch)) {
          if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
          addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
          } else if (isDef(oldCh)) {
          removeVnodes(elm, oldCh, 0, oldCh.length - 1);
          } else if (isDef(oldVnode.text)) {
          nodeOps.setTextContent(elm, '');
          }
          } else if (oldVnode.text !== vnode.text) {
          nodeOps.setTextContent(elm, vnode.text);
          }
          if (isDef(data)) {
          if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
          }
          }
          
          function invokeInsertHook (vnode, queue, initial) {
          // delay insert hooks for component root nodes, invoke them after the
          // element is really inserted
          if (isTrue(initial) && isDef(vnode.parent)) {
          vnode.parent.data.pendingInsert = queue;
          } else {
          for (var i = 0; i < queue.length; ++i) {
          queue[i].data.hook.insert(queue[i]);
          }
          }
          }
          
          var bailed = false;
          // list of modules that can skip create hook during hydration because they
          // are already rendered on the client or has no need for initialization
          var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');
          
          // Note: this is a browser-only function so we can assume elms are DOM nodes.
          function hydrate (elm, vnode, insertedVnodeQueue) {
          {
          if (!assertNodeMatch(elm, vnode)) {
          return false
          }
          }
          vnode.elm = elm;
          var tag = vnode.tag;
          var data = vnode.data;
          var children = vnode.children;
          if (isDef(data)) {
          if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
          if (isDef(i = vnode.componentInstance)) {
          // child component. it should have hydrated its own tree.
          initComponent(vnode, insertedVnodeQueue);
          return true
          }
          }
          if (isDef(tag)) {
          if (isDef(children)) {
          // empty element, allow client to pick up and populate children
          if (!elm.hasChildNodes()) {
          createChildren(vnode, children, insertedVnodeQueue);
          } else {
          var childrenMatch = true;
          var childNode = elm.firstChild;
          for (var i$1 = 0; i$1 < children.length; i$1++) {
          if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
          childrenMatch = false;
          break
          }
          childNode = childNode.nextSibling;
          }
          // if childNode is not null, it means the actual childNodes list is
          // longer than the virtual children list.
          if (!childrenMatch || childNode) {
          if ("development" !== 'production' &&
              typeof console !== 'undefined' &&
              !bailed) {
          bailed = true;
          console.warn('Parent: ', elm);
          console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
          }
          return false
          }
          }
          }
          if (isDef(data)) {
          for (var key in data) {
          if (!isRenderedModule(key)) {
          invokeCreateHooks(vnode, insertedVnodeQueue);
          break
          }
          }
          }
          } else if (elm.data !== vnode.text) {
          elm.data = vnode.text;
          }
          return true
          }
          
          function assertNodeMatch (node, vnode) {
          if (isDef(vnode.tag)) {
          return (
                  vnode.tag.indexOf('vue-component') === 0 ||
                  vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
                  )
          } else {
          return node.nodeType === (vnode.isComment ? 8 : 3)
          }
          }
          
          return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
          if (isUndef(vnode)) {
          if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
          return
          }
          
          var isInitialPatch = false;
          var insertedVnodeQueue = [];
          
          if (isUndef(oldVnode)) {
          // empty mount (likely as component), create new root element
          isInitialPatch = true;
          createElm(vnode, insertedVnodeQueue, parentElm, refElm);
          } else {
          var isRealElement = isDef(oldVnode.nodeType);
          if (!isRealElement && sameVnode(oldVnode, vnode)) {
          // patch existing root node
          patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
          } else {
          if (isRealElement) {
          // mounting to a real element
          // check if this is server-rendered content and if we can perform
          // a successful hydration.
          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
          oldVnode.removeAttribute(SSR_ATTR);
          hydrating = true;
          }
          if (isTrue(hydrating)) {
          if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
          invokeInsertHook(vnode, insertedVnodeQueue, true);
          return oldVnode
          } else {
          warn(
               'The client-side rendered virtual DOM tree is not matching ' +
               'server-rendered content. This is likely caused by incorrect ' +
               'HTML markup, for example nesting block-level elements inside ' +
               '<p>, or missing <tbody>. Bailing hydration and performing ' +
               'full client-side render.'
               );
          }
          }
          // either not server-rendered, or hydration failed.
          // create an empty node and replace it
          oldVnode = emptyNodeAt(oldVnode);
          }
          // replacing existing element
          var oldElm = oldVnode.elm;
          var parentElm$1 = nodeOps.parentNode(oldElm);
          createElm(
                    vnode,
                    insertedVnodeQueue,
                    // extremely rare edge case: do not insert if old element is in a
                    // leaving transition. Only happens when combining transition +
                    // keep-alive + HOCs. (#4590)
                    oldElm._leaveCb ? null : parentElm$1,
                    nodeOps.nextSibling(oldElm)
                    );
          
          if (isDef(vnode.parent)) {
          // component root element replaced.
          // update parent placeholder node element, recursively
          var ancestor = vnode.parent;
          while (ancestor) {
          ancestor.elm = vnode.elm;
          ancestor = ancestor.parent;
          }
          if (isPatchable(vnode)) {
          for (var i = 0; i < cbs.create.length; ++i) {
          cbs.create[i](emptyNode, vnode.parent);
          }
          }
          }
          
          if (isDef(parentElm$1)) {
          removeVnodes(parentElm$1, [oldVnode], 0, 0);
          } else if (isDef(oldVnode.tag)) {
          invokeDestroyHook(oldVnode);
          }
          }
          }
          
          invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
          return vnode.elm
          }
          }
          
/*  */
          
          var directives = {
          create: updateDirectives,
          update: updateDirectives,
          destroy: function unbindDirectives (vnode) {
          updateDirectives(vnode, emptyNode);
          }
          };
          
          function updateDirectives (oldVnode, vnode) {
          if (oldVnode.data.directives || vnode.data.directives) {
          _update(oldVnode, vnode);
          }
          }
          
          function _update (oldVnode, vnode) {
          var isCreate = oldVnode === emptyNode;
          var isDestroy = vnode === emptyNode;
          var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
          var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
          
          var dirsWithInsert = [];
          var dirsWithPostpatch = [];
          
          var key, oldDir, dir;
          for (key in newDirs) {
          oldDir = oldDirs[key];
          dir = newDirs[key];
          if (!oldDir) {
          // new directive, bind
          callHook$1(dir, 'bind', vnode, oldVnode);
          if (dir.def && dir.def.inserted) {
          dirsWithInsert.push(dir);
          }
          } else {
          // existing directive, update
          dir.oldValue = oldDir.value;
          callHook$1(dir, 'update', vnode, oldVnode);
          if (dir.def && dir.def.componentUpdated) {
          dirsWithPostpatch.push(dir);
          }
          }
          }
          
          if (dirsWithInsert.length) {
          var callInsert = function () {
          for (var i = 0; i < dirsWithInsert.length; i++) {
          callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
          }
          };
          if (isCreate) {
          mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
          } else {
          callInsert();
          }
          }
          
          if (dirsWithPostpatch.length) {
          mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
                         for (var i = 0; i < dirsWithPostpatch.length; i++) {
                         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
                         }
                         });
          }
          
          if (!isCreate) {
          for (key in oldDirs) {
          if (!newDirs[key]) {
          // no longer present, unbind
          callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
          }
          }
          }
          }
          
          var emptyModifiers = Object.create(null);
          
          function normalizeDirectives$1 (
                                          dirs,
                                          vm
                                          ) {
          var res = Object.create(null);
          if (!dirs) {
          return res
          }
          var i, dir;
          for (i = 0; i < dirs.length; i++) {
          dir = dirs[i];
          if (!dir.modifiers) {
          dir.modifiers = emptyModifiers;
          }
          res[getRawDirName(dir)] = dir;
          dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
          }
          return res
          }
          
          function getRawDirName (dir) {
          return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
          }
          
          function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
          var fn = dir.def && dir.def[hook];
          if (fn) {
          try {
          fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
          } catch (e) {
          handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
          }
          }
          }
          
          var baseModules = [
                             ref,
                             directives
                             ];
          
/*  */
          
          function updateAttrs (oldVnode, vnode) {
          if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
          return
          }
          var key, cur, old;
          var elm = vnode.elm;
          var oldAttrs = oldVnode.data.attrs || {};
          var attrs = vnode.data.attrs || {};
          // clone observed objects, as the user probably wants to mutate it
          if (isDef(attrs.__ob__)) {
          attrs = vnode.data.attrs = extend({}, attrs);
          }
          
          for (key in attrs) {
          cur = attrs[key];
          old = oldAttrs[key];
          if (old !== cur) {
          setAttr(elm, key, cur);
          }
          }
          // #4391: in IE9, setting type can reset value for input[type=radio]
          /* istanbul ignore if */
          if (isIE9 && attrs.value !== oldAttrs.value) {
          setAttr(elm, 'value', attrs.value);
          }
          for (key in oldAttrs) {
          if (isUndef(attrs[key])) {
          if (isXlink(key)) {
          elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
          } else if (!isEnumeratedAttr(key)) {
          elm.removeAttribute(key);
          }
          }
          }
          }
          
          function setAttr (el, key, value) {
          if (isBooleanAttr(key)) {
          // set attribute for blank value
          // e.g. <option disabled>Select one</option>
          if (isFalsyAttrValue(value)) {
          el.removeAttribute(key);
          } else {
          el.setAttribute(key, key);
          }
          } else if (isEnumeratedAttr(key)) {
          el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
          } else if (isXlink(key)) {
          if (isFalsyAttrValue(value)) {
          el.removeAttributeNS(xlinkNS, getXlinkProp(key));
          } else {
          el.setAttributeNS(xlinkNS, key, value);
          }
          } else {
          if (isFalsyAttrValue(value)) {
          el.removeAttribute(key);
          } else {
          el.setAttribute(key, value);
          }
          }
          }
          
          var attrs = {
          create: updateAttrs,
          update: updateAttrs
          };
          
/*  */
          
          function updateClass (oldVnode, vnode) {
          var el = vnode.elm;
          var data = vnode.data;
          var oldData = oldVnode.data;
          if (
              isUndef(data.staticClass) &&
              isUndef(data.class) && (
                                      isUndef(oldData) || (
                                                           isUndef(oldData.staticClass) &&
                                                           isUndef(oldData.class)
                                                           )
                                      )
              ) {
          return
          }
          
          var cls = genClassForVnode(vnode);
          
          // handle transition classes
          var transitionClass = el._transitionClasses;
          if (isDef(transitionClass)) {
          cls = concat(cls, stringifyClass(transitionClass));
          }
          
          // set the class
          if (cls !== el._prevClass) {
          el.setAttribute('class', cls);
          el._prevClass = cls;
          }
          }
          
          var klass = {
          create: updateClass,
          update: updateClass
          };
          
/*  */
          
          var validDivisionCharRE = /[\w).+\-_$\]]/;
          
          function parseFilters (exp) {
          var inSingle = false;
          var inDouble = false;
          var inTemplateString = false;
          var inRegex = false;
          var curly = 0;
          var square = 0;
          var paren = 0;
          var lastFilterIndex = 0;
          var c, prev, i, expression, filters;
          
          for (i = 0; i < exp.length; i++) {
          prev = c;
          c = exp.charCodeAt(i);
          if (inSingle) {
          if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
          } else if (inDouble) {
          if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
          } else if (inTemplateString) {
          if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
          } else if (inRegex) {
          if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
          } else if (
                     c === 0x7C && // pipe
                     exp.charCodeAt(i + 1) !== 0x7C &&
                     exp.charCodeAt(i - 1) !== 0x7C &&
                     !curly && !square && !paren
                     ) {
          if (expression === undefined) {
          // first filter, end of expression
          lastFilterIndex = i + 1;
          expression = exp.slice(0, i).trim();
          } else {
          pushFilter();
          }
          } else {
          switch (c) {
          case 0x22: inDouble = true; break         // "
          case 0x27: inSingle = true; break         // '
          case 0x60: inTemplateString = true; break // `
          case 0x28: paren++; break                 // (
          case 0x29: paren--; break                 // )
          case 0x5B: square++; break                // [
          case 0x5D: square--; break                // ]
          case 0x7B: curly++; break                 // {
          case 0x7D: curly--; break                 // }
          }
          if (c === 0x2f) { // /
          var j = i - 1;
          var p = (void 0);
          // find first non-whitespace prev char
          for (; j >= 0; j--) {
          p = exp.charAt(j);
          if (p !== ' ') { break }
          }
          if (!p || !validDivisionCharRE.test(p)) {
          inRegex = true;
          }
          }
          }
          }
          
          if (expression === undefined) {
          expression = exp.slice(0, i).trim();
          } else if (lastFilterIndex !== 0) {
          pushFilter();
          }
          
          function pushFilter () {
          (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
          lastFilterIndex = i + 1;
          }
          
          if (filters) {
          for (i = 0; i < filters.length; i++) {
          expression = wrapFilter(expression, filters[i]);
          }
          }
          
          return expression
          }
          
          function wrapFilter (exp, filter) {
          var i = filter.indexOf('(');
          if (i < 0) {
          // _f: resolveFilter
          return ("_f(\"" + filter + "\")(" + exp + ")")
          } else {
          var name = filter.slice(0, i);
          var args = filter.slice(i + 1);
          return ("_f(\"" + name + "\")(" + exp + "," + args)
          }
          }
          
/*  */
          
          function baseWarn (msg) {
          console.error(("[Vue compiler]: " + msg));
          }
          
          function pluckModuleFunction (
                                        modules,
                                        key
                                        ) {
          return modules
          ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
          : []
          }
          
          function addProp (el, name, value) {
          (el.props || (el.props = [])).push({ name: name, value: value });
          }
          
          function addAttr (el, name, value) {
          (el.attrs || (el.attrs = [])).push({ name: name, value: value });
          }
          
          function addDirective (
                                 el,
                                 name,
                                 rawName,
                                 value,
                                 arg,
                                 modifiers
                                 ) {
          (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
          }
          
          function addHandler (
                               el,
                               name,
                               value,
                               modifiers,
                               important,
                               warn
                               ) {
          // warn prevent and passive modifier
          /* istanbul ignore if */
          if (
              "development" !== 'production' && warn &&
              modifiers && modifiers.prevent && modifiers.passive
              ) {
          warn(
               'passive and prevent can\'t be used together. ' +
               'Passive handler can\'t prevent default event.'
               );
          }
          // check capture modifier
          if (modifiers && modifiers.capture) {
          delete modifiers.capture;
          name = '!' + name; // mark the event as captured
          }
          if (modifiers && modifiers.once) {
          delete modifiers.once;
          name = '~' + name; // mark the event as once
          }
          /* istanbul ignore if */
          if (modifiers && modifiers.passive) {
          delete modifiers.passive;
          name = '&' + name; // mark the event as passive
          }
          var events;
          if (modifiers && modifiers.native) {
          delete modifiers.native;
          events = el.nativeEvents || (el.nativeEvents = {});
          } else {
          events = el.events || (el.events = {});
          }
          var newHandler = { value: value, modifiers: modifiers };
          var handlers = events[name];
          /* istanbul ignore if */
          if (Array.isArray(handlers)) {
          important ? handlers.unshift(newHandler) : handlers.push(newHandler);
          } else if (handlers) {
          events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
          } else {
          events[name] = newHandler;
          }
          }
          
          function getBindingAttr (
                                   el,
                                   name,
                                   getStatic
                                   ) {
          var dynamicValue =
          getAndRemoveAttr(el, ':' + name) ||
          getAndRemoveAttr(el, 'v-bind:' + name);
          if (dynamicValue != null) {
          return parseFilters(dynamicValue)
          } else if (getStatic !== false) {
          var staticValue = getAndRemoveAttr(el, name);
          if (staticValue != null) {
          return JSON.stringify(staticValue)
          }
          }
          }
          
          function getAndRemoveAttr (el, name) {
          var val;
          if ((val = el.attrsMap[name]) != null) {
          var list = el.attrsList;
          for (var i = 0, l = list.length; i < l; i++) {
          if (list[i].name === name) {
          list.splice(i, 1);
          break
          }
          }
          }
          return val
          }
          
/*  */
          
/**
 * Cross-platform code generation for component v-model
 */
          function genComponentModel (
                                      el,
                                      value,
                                      modifiers
                                      ) {
          var ref = modifiers || {};
          var number = ref.number;
          var trim = ref.trim;
          
          var baseValueExpression = '$$v';
          var valueExpression = baseValueExpression;
          if (trim) {
          valueExpression =
          "(typeof " + baseValueExpression + " === 'string'" +
          "? " + baseValueExpression + ".trim()" +
          ": " + baseValueExpression + ")";
          }
          if (number) {
          valueExpression = "_n(" + valueExpression + ")";
          }
          var assignment = genAssignmentCode(value, valueExpression);
          
          el.model = {
          value: ("(" + value + ")"),
          expression: ("\"" + value + "\""),
          callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
          };
          }
          
/**
 * Cross-platform codegen helper for generating v-model value assignment code.
 */
          function genAssignmentCode (
                                      value,
                                      assignment
                                      ) {
          var modelRs = parseModel(value);
          if (modelRs.idx === null) {
          return (value + "=" + assignment)
          } else {
          return "var $$exp = " + (modelRs.exp) + ", $$idx = " + (modelRs.idx) + ";" +
          "if (!Array.isArray($$exp)){" +
          value + "=" + assignment + "}" +
          "else{$$exp.splice($$idx, 1, " + assignment + ")}"
          }
          }
          
/**
 * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
 *
 * for loop possible cases:
 *
 * - test
 * - test[idx]
 * - test[test1[idx]]
 * - test["a"][idx]
 * - xxx.test[a[a].test1[idx]]
 * - test.xxx.a["asa"][test1[idx]]
 *
 */
          
          var len;
          var str;
          var chr;
          var index$1;
          var expressionPos;
          var expressionEndPos;
          
          function parseModel (val) {
          str = val;
          len = str.length;
          index$1 = expressionPos = expressionEndPos = 0;
          
          if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
          return {
          exp: val,
          idx: null
          }
          }
          
          while (!eof()) {
          chr = next();
          /* istanbul ignore if */
          if (isStringStart(chr)) {
          parseString(chr);
          } else if (chr === 0x5B) {
          parseBracket(chr);
          }
          }
          
          return {
          exp: val.substring(0, expressionPos),
          idx: val.substring(expressionPos + 1, expressionEndPos)
          }
          }
          
          function next () {
          return str.charCodeAt(++index$1)
          }
          
          function eof () {
          return index$1 >= len
          }
          
          function isStringStart (chr) {
          return chr === 0x22 || chr === 0x27
          }
          
          function parseBracket (chr) {
          var inBracket = 1;
          expressionPos = index$1;
          while (!eof()) {
          chr = next();
          if (isStringStart(chr)) {
          parseString(chr);
          continue
          }
          if (chr === 0x5B) { inBracket++; }
          if (chr === 0x5D) { inBracket--; }
          if (inBracket === 0) {
          expressionEndPos = index$1;
          break
          }
          }
          }
          
          function parseString (chr) {
          var stringQuote = chr;
          while (!eof()) {
          chr = next();
          if (chr === stringQuote) {
          break
          }
          }
          }
          
/*  */
          
          var warn$1;
          
          // in some cases, the event used has to be determined at runtime
          // so we used some reserved tokens during compile.
          var RANGE_TOKEN = '__r';
          var CHECKBOX_RADIO_TOKEN = '__c';
          
          function model (
                          el,
                          dir,
                          _warn
                          ) {
          warn$1 = _warn;
          var value = dir.value;
          var modifiers = dir.modifiers;
          var tag = el.tag;
          var type = el.attrsMap.type;
          
          {
          var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
          if (tag === 'input' && dynamicType) {
          warn$1(
                 "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" +
                 "v-model does not support dynamic input types. Use v-if branches instead."
                 );
          }
          // inputs with type="file" are read only and setting the input's
          // value will throw an error.
          if (tag === 'input' && type === 'file') {
          warn$1(
                 "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
                 "File inputs are read only. Use a v-on:change listener instead."
                 );
          }
          }
          
          if (tag === 'select') {
          genSelect(el, value, modifiers);
          } else if (tag === 'input' && type === 'checkbox') {
          genCheckboxModel(el, value, modifiers);
          } else if (tag === 'input' && type === 'radio') {
          genRadioModel(el, value, modifiers);
          } else if (tag === 'input' || tag === 'textarea') {
          genDefaultModel(el, value, modifiers);
          } else if (!config.isReservedTag(tag)) {
          genComponentModel(el, value, modifiers);
          // component v-model doesn't need extra runtime
          return false
          } else {
          warn$1(
                 "<" + (el.tag) + " v-model=\"" + value + "\">: " +
                 "v-model is not supported on this element type. " +
                 'If you are working with contenteditable, it\'s recommended to ' +
                 'wrap a library dedicated for that purpose inside a custom component.'
                 );
          }
          
          // ensure runtime directive metadata
          return true
          }
          
          function genCheckboxModel (
                                     el,
                                     value,
                                     modifiers
                                     ) {
          var number = modifiers && modifiers.number;
          var valueBinding = getBindingAttr(el, 'value') || 'null';
          var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
          var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
          addProp(el, 'checked',
                  "Array.isArray(" + value + ")" +
                  "?_i(" + value + "," + valueBinding + ")>-1" + (
                                                                  trueValueBinding === 'true'
                                                                  ? (":(" + value + ")")
                                                                  : (":_q(" + value + "," + trueValueBinding + ")")
                                                                  )
                  );
          addHandler(el, CHECKBOX_RADIO_TOKEN,
                     "var $$a=" + value + "," +
                     '$$el=$event.target,' +
                     "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
                     'if(Array.isArray($$a)){' +
                     "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
                     '$$i=_i($$a,$$v);' +
                     "if($$c){$$i<0&&(" + value + "=$$a.concat($$v))}" +
                     "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
                     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
                     null, true
                     );
          }
          
          function genRadioModel (
                                  el,
                                  value,
                                  modifiers
                                  ) {
          var number = modifiers && modifiers.number;
          var valueBinding = getBindingAttr(el, 'value') || 'null';
          valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
          addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
          addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true);
          }
          
          function genSelect (
                              el,
                              value,
                              modifiers
                              ) {
          var number = modifiers && modifiers.number;
          var selectedVal = "Array.prototype.filter" +
          ".call($event.target.options,function(o){return o.selected})" +
          ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
          "return " + (number ? '_n(val)' : 'val') + "})";
          
          var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
          var code = "var $$selectedVal = " + selectedVal + ";";
          code = code + " " + (genAssignmentCode(value, assignment));
          addHandler(el, 'change', code, null, true);
          }
          
          function genDefaultModel (
                                    el,
                                    value,
                                    modifiers
                                    ) {
          var type = el.attrsMap.type;
          var ref = modifiers || {};
          var lazy = ref.lazy;
          var number = ref.number;
          var trim = ref.trim;
          var needCompositionGuard = !lazy && type !== 'range';
          var event = lazy
          ? 'change'
          : type === 'range'
          ? RANGE_TOKEN
          : 'input';
          
          var valueExpression = '$event.target.value';
          if (trim) {
          valueExpression = "$event.target.value.trim()";
          }
          if (number) {
          valueExpression = "_n(" + valueExpression + ")";
          }
          
          var code = genAssignmentCode(value, valueExpression);
          if (needCompositionGuard) {
          code = "if($event.target.composing)return;" + code;
          }
          
          addProp(el, 'value', ("(" + value + ")"));
          addHandler(el, event, code, null, true);
          if (trim || number || type === 'number') {
          addHandler(el, 'blur', '$forceUpdate()');
          }
          }
          
/*  */
          
          // normalize v-model event tokens that can only be determined at runtime.
          // it's important to place the event as the first in the array because
          // the whole point is ensuring the v-model callback gets called before
          // user-attached handlers.
          function normalizeEvents (on) {
          var event;
          /* istanbul ignore if */
          if (isDef(on[RANGE_TOKEN])) {
          // IE input[type=range] only supports `change` event
          event = isIE ? 'change' : 'input';
          on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
          delete on[RANGE_TOKEN];
          }
          if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
          // Chrome fires microtasks in between click/change, leads to #4521
          event = isChrome ? 'click' : 'change';
          on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []);
          delete on[CHECKBOX_RADIO_TOKEN];
          }
          }
          
          var target$1;
          
          function add$1 (
                          event,
                          handler,
                          once$$1,
                          capture,
                          passive
                          ) {
          if (once$$1) {
          var oldHandler = handler;
          var _target = target$1; // save current target element in closure
          handler = function (ev) {
          var res = arguments.length === 1
          ? oldHandler(ev)
          : oldHandler.apply(null, arguments);
          if (res !== null) {
          remove$2(event, handler, capture, _target);
          }
          };
          }
          target$1.addEventListener(
                                    event,
                                    handler,
                                    supportsPassive
                                    ? { capture: capture, passive: passive }
                                    : capture
                                    );
          }
          
          function remove$2 (
                             event,
                             handler,
                             capture,
                             _target
                             ) {
          (_target || target$1).removeEventListener(event, handler, capture);
          }
          
          function updateDOMListeners (oldVnode, vnode) {
          if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
          return
          }
          var on = vnode.data.on || {};
          var oldOn = oldVnode.data.on || {};
          target$1 = vnode.elm;
          normalizeEvents(on);
          updateListeners(on, oldOn, add$1, remove$2, vnode.context);
          }
          
          var events = {
          create: updateDOMListeners,
          update: updateDOMListeners
          };
          
/*  */
          
          function updateDOMProps (oldVnode, vnode) {
          if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
          return
          }
          var key, cur;
          var elm = vnode.elm;
          var oldProps = oldVnode.data.domProps || {};
          var props = vnode.data.domProps || {};
          // clone observed objects, as the user probably wants to mutate it
          if (isDef(props.__ob__)) {
          props = vnode.data.domProps = extend({}, props);
          }
          
          for (key in oldProps) {
          if (isUndef(props[key])) {
          elm[key] = '';
          }
          }
          for (key in props) {
          cur = props[key];
          // ignore children if the node has textContent or innerHTML,
          // as these will throw away existing DOM nodes and cause removal errors
          // on subsequent patches (#3360)
          if (key === 'textContent' || key === 'innerHTML') {
          if (vnode.children) { vnode.children.length = 0; }
          if (cur === oldProps[key]) { continue }
          }
          
          if (key === 'value') {
          // store value as _value as well since
          // non-string values will be stringified
          elm._value = cur;
          // avoid resetting cursor position when value is the same
          var strCur = cur == null ? '' : String(cur);
          if (shouldUpdateValue(elm, vnode, strCur)) {
          elm.value = strCur;
          }
          } else {
          elm[key] = cur;
          }
          }
          }
          
          // check platforms/web/util/attrs.js acceptValue
          
          
          function shouldUpdateValue (
                                      elm,
                                      vnode,
                                      checkVal
                                      ) {
          return (!elm.composing && (
                                     vnode.tag === 'option' ||
                                     isDirty(elm, checkVal) ||
                                     isInputChanged(elm, checkVal)
                                     ))
          }
          
          function isDirty (elm, checkVal) {
          // return true when textbox (.number and .trim) loses focus and its value is not equal to the updated value
          return document.activeElement !== elm && elm.value !== checkVal
          }
          
          function isInputChanged (elm, newVal) {
          var value = elm.value;
          var modifiers = elm._vModifiers; // injected by v-model runtime
          if ((isDef(modifiers) && modifiers.number) || elm.type === 'number') {
          return toNumber(value) !== toNumber(newVal)
          }
          if (isDef(modifiers) && modifiers.trim) {
          return value.trim() !== newVal.trim()
          }
          return value !== newVal
          }
          
          var domProps = {
          create: updateDOMProps,
          update: updateDOMProps
          };
          
/*  */
          
          var parseStyleText = cached(function (cssText) {
                                      var res = {};
                                      var listDelimiter = /;(?![^(]*\))/g;
                                                                var propertyDelimiter = /:(.+)/;
                                                                cssText.split(listDelimiter).forEach(function (item) {
                                                                                                     if (item) {
                                                                                                     var tmp = item.split(propertyDelimiter);
                                                                                                     tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
                                                                                                     }
                                                                                                     });
                                                                return res
                                                                });
                                                                
                                                                // merge static and dynamic style data on the same vnode
                                                                function normalizeStyleData (data) {
                                                                var style = normalizeStyleBinding(data.style);
                                                                // static style is pre-processed into an object during compilation
                                                                // and is always a fresh object, so it's safe to merge into it
                                                                return data.staticStyle
                                                                ? extend(data.staticStyle, style)
                                                                : style
                                                                }
                                                                
                                                                // normalize possible array / string values into Object
                                                                function normalizeStyleBinding (bindingStyle) {
                                                                if (Array.isArray(bindingStyle)) {
                                                                return toObject(bindingStyle)
                                                                }
                                                                if (typeof bindingStyle === 'string') {
                                                                return parseStyleText(bindingStyle)
                                                                }
                                                                return bindingStyle
                                                                }
                                                                
/**
 * parent component style should be after child's
 * so that parent component's style could override it
 */
                                                                function getStyle (vnode, checkChild) {
                                                                var res = {};
                                                                var styleData;
                                                                
                                                                if (checkChild) {
                                                                var childNode = vnode;
                                                                while (childNode.componentInstance) {
                                                                childNode = childNode.componentInstance._vnode;
                                                                if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
                                                                extend(res, styleData);
                                                                }
                                                                }
                                                                }
                                                                
                                                                if ((styleData = normalizeStyleData(vnode.data))) {
                                                                extend(res, styleData);
                                                                }
                                                                
                                                                var parentNode = vnode;
                                                                while ((parentNode = parentNode.parent)) {
                                                                if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
                                                                extend(res, styleData);
                                                                }
                                                                }
                                                                return res
                                                                }
                                                                
/*  */
                                                                
                                                                var cssVarRE = /^--/;
                                                                var importantRE = /\s*!important$/;
                                                                var setProp = function (el, name, val) {
                                                                /* istanbul ignore if */
                                                                if (cssVarRE.test(name)) {
                                                                el.style.setProperty(name, val);
                                                                } else if (importantRE.test(val)) {
                                                                el.style.setProperty(name, val.replace(importantRE, ''), 'important');
                                                                } else {
                                                                var normalizedName = normalize(name);
                                                                if (Array.isArray(val)) {
                                                                // Support values array created by autoprefixer, e.g.
                                                                // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
                                                                // Set them one by one, and the browser will only set those it can recognize
                                                                for (var i = 0, len = val.length; i < len; i++) {
                                                                el.style[normalizedName] = val[i];
                                                                }
                                                                } else {
                                                                el.style[normalizedName] = val;
                                                                }
                                                                }
                                                                };
                                                                
                                                                var prefixes = ['Webkit', 'Moz', 'ms'];
                                                                
                                                                var testEl;
                                                                var normalize = cached(function (prop) {
                                                                                       testEl = testEl || document.createElement('div');
                                                                                       prop = camelize(prop);
                                                                                       if (prop !== 'filter' && (prop in testEl.style)) {
                                                                                       return prop
                                                                                       }
                                                                                       var upper = prop.charAt(0).toUpperCase() + prop.slice(1);
                                                                                       for (var i = 0; i < prefixes.length; i++) {
                                                                                       var prefixed = prefixes[i] + upper;
                                                                                       if (prefixed in testEl.style) {
                                                                                       return prefixed
                                                                                       }
                                                                                       }
                                                                                       });
                                                                
                                                                function updateStyle (oldVnode, vnode) {
                                                                var data = vnode.data;
                                                                var oldData = oldVnode.data;
                                                                
                                                                if (isUndef(data.staticStyle) && isUndef(data.style) &&
                                                                    isUndef(oldData.staticStyle) && isUndef(oldData.style)) {
                                                                return
                                                                }
                                                                
                                                                var cur, name;
                                                                var el = vnode.elm;
                                                                var oldStaticStyle = oldData.staticStyle;
                                                                var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
                                                                
                                                                // if static style exists, stylebinding already merged into it when doing normalizeStyleData
                                                                var oldStyle = oldStaticStyle || oldStyleBinding;
                                                                
                                                                var style = normalizeStyleBinding(vnode.data.style) || {};
                                                                
                                                                // store normalized style under a different key for next diff
                                                                // make sure to clone it if it's reactive, since the user likley wants
                                                                // to mutate it.
                                                                vnode.data.normalizedStyle = isDef(style.__ob__)
                                                                ? extend({}, style)
                                                                : style;
                                                                
                                                                var newStyle = getStyle(vnode, true);
                                                                
                                                                for (name in oldStyle) {
                                                                if (isUndef(newStyle[name])) {
                                                                setProp(el, name, '');
                                                                }
                                                                }
                                                                for (name in newStyle) {
                                                                cur = newStyle[name];
                                                                if (cur !== oldStyle[name]) {
                                                                // ie9 setting to null has no effect, must use empty string
                                                                setProp(el, name, cur == null ? '' : cur);
                                                                }
                                                                }
                                                                }
                                                                
                                                                var style = {
                                                                create: updateStyle,
                                                                update: updateStyle
                                                                };
                                                                
/*  */
                                                                
/**
 * Add class with compatibility for SVG since classList is not supported on
 * SVG elements in IE
 */
                                                                function addClass (el, cls) {
                                                                /* istanbul ignore if */
                                                                if (!cls || !(cls = cls.trim())) {
                                                                return
                                                                }
                                                                
                                                                /* istanbul ignore else */
                                                                if (el.classList) {
                                                                if (cls.indexOf(' ') > -1) {
                                                                cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
                                                                } else {
                                                                el.classList.add(cls);
                                                                }
                                                                } else {
                                                                var cur = " " + (el.getAttribute('class') || '') + " ";
                                                                if (cur.indexOf(' ' + cls + ' ') < 0) {
                                                                el.setAttribute('class', (cur + cls).trim());
                                                                }
                                                                }
                                                                }
                                                                
/**
 * Remove class with compatibility for SVG since classList is not supported on
 * SVG elements in IE
 */
                                                                function removeClass (el, cls) {
                                                                /* istanbul ignore if */
                                                                if (!cls || !(cls = cls.trim())) {
                                                                return
                                                                }
                                                                
                                                                /* istanbul ignore else */
                                                                if (el.classList) {
                                                                if (cls.indexOf(' ') > -1) {
                                                                cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
                                                                } else {
                                                                el.classList.remove(cls);
                                                                }
                                                                } else {
                                                                var cur = " " + (el.getAttribute('class') || '') + " ";
                                                                var tar = ' ' + cls + ' ';
                                                                while (cur.indexOf(tar) >= 0) {
                                                                cur = cur.replace(tar, ' ');
                                                                }
                                                                el.setAttribute('class', cur.trim());
                                                                }
                                                                }
                                                                
/*  */
                                                                
                                                                function resolveTransition (def$$1) {
                                                                if (!def$$1) {
                                                                return
                                                                }
                                                                /* istanbul ignore else */
                                                                if (typeof def$$1 === 'object') {
                                                                var res = {};
                                                                if (def$$1.css !== false) {
                                                                extend(res, autoCssTransition(def$$1.name || 'v'));
                                                                }
                                                                extend(res, def$$1);
                                                                return res
                                                                } else if (typeof def$$1 === 'string') {
                                                                return autoCssTransition(def$$1)
                                                                }
                                                                }
                                                                
                                                                var autoCssTransition = cached(function (name) {
                                                                                               return {
                                                                                               enterClass: (name + "-enter"),
                                                                                               enterToClass: (name + "-enter-to"),
                                                                                               enterActiveClass: (name + "-enter-active"),
                                                                                               leaveClass: (name + "-leave"),
                                                                                               leaveToClass: (name + "-leave-to"),
                                                                                               leaveActiveClass: (name + "-leave-active")
                                                                                               }
                                                                                               });
                                                                
                                                                var hasTransition = inBrowser && !isIE9;
                                                                var TRANSITION = 'transition';
                                                                var ANIMATION = 'animation';
                                                                
                                                                // Transition property/event sniffing
                                                                var transitionProp = 'transition';
                                                                var transitionEndEvent = 'transitionend';
                                                                var animationProp = 'animation';
                                                                var animationEndEvent = 'animationend';
                                                                if (hasTransition) {
                                                                /* istanbul ignore if */
                                                                if (window.ontransitionend === undefined &&
                                                                    window.onwebkittransitionend !== undefined) {
                                                                transitionProp = 'WebkitTransition';
                                                                transitionEndEvent = 'webkitTransitionEnd';
                                                                }
                                                                if (window.onanimationend === undefined &&
                                                                    window.onwebkitanimationend !== undefined) {
                                                                animationProp = 'WebkitAnimation';
                                                                animationEndEvent = 'webkitAnimationEnd';
                                                                }
                                                                }
                                                                
                                                                // binding to window is necessary to make hot reload work in IE in strict mode
                                                                var raf = inBrowser && window.requestAnimationFrame
                                                                ? window.requestAnimationFrame.bind(window)
                                                                : setTimeout;
                                                                
                                                                function nextFrame (fn) {
                                                                raf(function () {
                                                                    raf(fn);
                                                                    });
                                                                }
                                                                
                                                                function addTransitionClass (el, cls) {
                                                                (el._transitionClasses || (el._transitionClasses = [])).push(cls);
                                                                addClass(el, cls);
                                                                }
                                                                
                                                                function removeTransitionClass (el, cls) {
                                                                if (el._transitionClasses) {
                                                                remove(el._transitionClasses, cls);
                                                                }
                                                                removeClass(el, cls);
                                                                }
                                                                
                                                                function whenTransitionEnds (
                                                                                             el,
                                                                                             expectedType,
                                                                                             cb
                                                                                             ) {
                                                                var ref = getTransitionInfo(el, expectedType);
                                                                var type = ref.type;
                                                                var timeout = ref.timeout;
                                                                var propCount = ref.propCount;
                                                                if (!type) { return cb() }
                                                                var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
                                                                var ended = 0;
                                                                var end = function () {
                                                                el.removeEventListener(event, onEnd);
                                                                cb();
                                                                };
                                                                var onEnd = function (e) {
                                                                if (e.target === el) {
                                                                if (++ended >= propCount) {
                                                                end();
                                                                }
                                                                }
                                                                };
                                                                setTimeout(function () {
                                                                           if (ended < propCount) {
                                                                           end();
                                                                           }
                                                                           }, timeout + 1);
                                                                el.addEventListener(event, onEnd);
                                                                }
                                                                
                                                                var transformRE = /\b(transform|all)(,|$)/;
                                                                
                                                                function getTransitionInfo (el, expectedType) {
                                                                var styles = window.getComputedStyle(el);
                                                                var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
                                                                var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
                                                                var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
                                                                var animationDelays = styles[animationProp + 'Delay'].split(', ');
                                                                var animationDurations = styles[animationProp + 'Duration'].split(', ');
                                                                var animationTimeout = getTimeout(animationDelays, animationDurations);
                                                                
                                                                var type;
                                                                var timeout = 0;
                                                                var propCount = 0;
                                                                /* istanbul ignore if */
                                                                if (expectedType === TRANSITION) {
                                                                if (transitionTimeout > 0) {
                                                                type = TRANSITION;
                                                                timeout = transitionTimeout;
                                                                propCount = transitionDurations.length;
                                                                }
                                                                } else if (expectedType === ANIMATION) {
                                                                if (animationTimeout > 0) {
                                                                type = ANIMATION;
                                                                timeout = animationTimeout;
                                                                propCount = animationDurations.length;
                                                                }
                                                                } else {
                                                                timeout = Math.max(transitionTimeout, animationTimeout);
                                                                type = timeout > 0
                                                                ? transitionTimeout > animationTimeout
                                                                ? TRANSITION
                                                                : ANIMATION
                                                                : null;
                                                                propCount = type
                                                                ? type === TRANSITION
                                                                ? transitionDurations.length
                                                                : animationDurations.length
                                                                : 0;
                                                                }
                                                                var hasTransform =
                                                                type === TRANSITION &&
                                                                transformRE.test(styles[transitionProp + 'Property']);
                                                                return {
                                                                type: type,
                                                                timeout: timeout,
                                                                propCount: propCount,
                                                                hasTransform: hasTransform
                                                                }
                                                                }
                                                                
                                                                function getTimeout (delays, durations) {
                                                                /* istanbul ignore next */
                                                                while (delays.length < durations.length) {
                                                                delays = delays.concat(delays);
                                                                }
                                                                
                                                                return Math.max.apply(null, durations.map(function (d, i) {
                                                                                                          return toMs(d) + toMs(delays[i])
                                                                                                          }))
                                                                }
                                                                
                                                                function toMs (s) {
                                                                return Number(s.slice(0, -1)) * 1000
                                                                }
                                                                
/*  */
                                                                
                                                                function enter (vnode, toggleDisplay) {
                                                                var el = vnode.elm;
                                                                
                                                                // call leave callback now
                                                                if (isDef(el._leaveCb)) {
                                                                el._leaveCb.cancelled = true;
                                                                el._leaveCb();
                                                                }
                                                                
                                                                var data = resolveTransition(vnode.data.transition);
                                                                if (isUndef(data)) {
                                                                return
                                                                }
                                                                
                                                                /* istanbul ignore if */
                                                                if (isDef(el._enterCb) || el.nodeType !== 1) {
                                                                return
                                                                }
                                                                
                                                                var ref = (data);
                                                                var css = ref.css;
                                                                var type = ref.type;
                                                                var enterClass = ref.enterClass;
                                                                var enterToClass = ref.enterToClass;
                                                                var enterActiveClass = ref.enterActiveClass;
                                                                var appearClass = ref.appearClass;
                                                                var appearToClass = ref.appearToClass;
                                                                var appearActiveClass = ref.appearActiveClass;
                                                                var beforeEnter = ref.beforeEnter;
                                                                var enter = ref.enter;
                                                                var afterEnter = ref.afterEnter;
                                                                var enterCancelled = ref.enterCancelled;
                                                                var beforeAppear = ref.beforeAppear;
                                                                var appear = ref.appear;
                                                                var afterAppear = ref.afterAppear;
                                                                var appearCancelled = ref.appearCancelled;
                                                                var duration = ref.duration;
                                                                
                                                                // activeInstance will always be the <transition> component managing this
                                                                // transition. One edge case to check is when the <transition> is placed
                                                                // as the root node of a child component. In that case we need to check
                                                                // <transition>'s parent for appear check.
                                                                var context = activeInstance;
                                                                var transitionNode = activeInstance.$vnode;
                                                                while (transitionNode && transitionNode.parent) {
                                                                transitionNode = transitionNode.parent;
                                                                context = transitionNode.context;
                                                                }
                                                                
                                                                var isAppear = !context._isMounted || !vnode.isRootInsert;
                                                                
                                                                if (isAppear && !appear && appear !== '') {
                                                                return
                                                                }
                                                                
                                                                var startClass = isAppear && appearClass
                                                                ? appearClass
                                                                : enterClass;
                                                                var activeClass = isAppear && appearActiveClass
                                                                ? appearActiveClass
                                                                : enterActiveClass;
                                                                var toClass = isAppear && appearToClass
                                                                ? appearToClass
                                                                : enterToClass;
                                                                
                                                                var beforeEnterHook = isAppear
                                                                ? (beforeAppear || beforeEnter)
                                                                : beforeEnter;
                                                                var enterHook = isAppear
                                                                ? (typeof appear === 'function' ? appear : enter)
                                                                : enter;
                                                                var afterEnterHook = isAppear
                                                                ? (afterAppear || afterEnter)
                                                                : afterEnter;
                                                                var enterCancelledHook = isAppear
                                                                ? (appearCancelled || enterCancelled)
                                                                : enterCancelled;
                                                                
                                                                var explicitEnterDuration = toNumber(
                                                                                                     isObject(duration)
                                                                                                     ? duration.enter
                                                                                                     : duration
                                                                                                     );
                                                                
                                                                if ("development" !== 'production' && explicitEnterDuration != null) {
                                                                checkDuration(explicitEnterDuration, 'enter', vnode);
                                                                }
                                                                
                                                                var expectsCSS = css !== false && !isIE9;
                                                                var userWantsControl = getHookArgumentsLength(enterHook);
                                                                
                                                                var cb = el._enterCb = once(function () {
                                                                                            if (expectsCSS) {
                                                                                            removeTransitionClass(el, toClass);
                                                                                            removeTransitionClass(el, activeClass);
                                                                                            }
                                                                                            if (cb.cancelled) {
                                                                                            if (expectsCSS) {
                                                                                            removeTransitionClass(el, startClass);
                                                                                            }
                                                                                            enterCancelledHook && enterCancelledHook(el);
                                                                                            } else {
                                                                                            afterEnterHook && afterEnterHook(el);
                                                                                            }
                                                                                            el._enterCb = null;
                                                                                            });
                                                                
                                                                if (!vnode.data.show) {
                                                                // remove pending leave element on enter by injecting an insert hook
                                                                mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
                                                                               var parent = el.parentNode;
                                                                               var pendingNode = parent && parent._pending && parent._pending[vnode.key];
                                                                               if (pendingNode &&
                                                                                   pendingNode.tag === vnode.tag &&
                                                                                   pendingNode.elm._leaveCb) {
                                                                               pendingNode.elm._leaveCb();
                                                                               }
                                                                               enterHook && enterHook(el, cb);
                                                                               });
                                                                }
                                                                
                                                                // start enter transition
                                                                beforeEnterHook && beforeEnterHook(el);
                                                                if (expectsCSS) {
                                                                addTransitionClass(el, startClass);
                                                                addTransitionClass(el, activeClass);
                                                                nextFrame(function () {
                                                                          addTransitionClass(el, toClass);
                                                                          removeTransitionClass(el, startClass);
                                                                          if (!cb.cancelled && !userWantsControl) {
                                                                          if (isValidDuration(explicitEnterDuration)) {
                                                                          setTimeout(cb, explicitEnterDuration);
                                                                          } else {
                                                                          whenTransitionEnds(el, type, cb);
                                                                          }
                                                                          }
                                                                          });
                                                                }
                                                                
                                                                if (vnode.data.show) {
                                                                toggleDisplay && toggleDisplay();
                                                                enterHook && enterHook(el, cb);
                                                                }
                                                                
                                                                if (!expectsCSS && !userWantsControl) {
                                                                cb();
                                                                }
                                                                }
                                                                
                                                                function leave (vnode, rm) {
                                                                var el = vnode.elm;
                                                                
                                                                // call enter callback now
                                                                if (isDef(el._enterCb)) {
                                                                el._enterCb.cancelled = true;
                                                                el._enterCb();
                                                                }
                                                                
                                                                var data = resolveTransition(vnode.data.transition);
                                                                if (isUndef(data)) {
                                                                return rm()
                                                                }
                                                                
                                                                /* istanbul ignore if */
                                                                if (isDef(el._leaveCb) || el.nodeType !== 1) {
                                                                return
                                                                }
                                                                
                                                                var ref = (data);
                                                                var css = ref.css;
                                                                var type = ref.type;
                                                                var leaveClass = ref.leaveClass;
                                                                var leaveToClass = ref.leaveToClass;
                                                                var leaveActiveClass = ref.leaveActiveClass;
                                                                var beforeLeave = ref.beforeLeave;
                                                                var leave = ref.leave;
                                                                var afterLeave = ref.afterLeave;
                                                                var leaveCancelled = ref.leaveCancelled;
                                                                var delayLeave = ref.delayLeave;
                                                                var duration = ref.duration;
                                                                
                                                                var expectsCSS = css !== false && !isIE9;
                                                                var userWantsControl = getHookArgumentsLength(leave);
                                                                
                                                                var explicitLeaveDuration = toNumber(
                                                                                                     isObject(duration)
                                                                                                     ? duration.leave
                                                                                                     : duration
                                                                                                     );
                                                                
                                                                if ("development" !== 'production' && explicitLeaveDuration != null) {
                                                                checkDuration(explicitLeaveDuration, 'leave', vnode);
                                                                }
                                                                
                                                                var cb = el._leaveCb = once(function () {
                                                                                            if (el.parentNode && el.parentNode._pending) {
                                                                                            el.parentNode._pending[vnode.key] = null;
                                                                                            }
                                                                                            if (expectsCSS) {
                                                                                            removeTransitionClass(el, leaveToClass);
                                                                                            removeTransitionClass(el, leaveActiveClass);
                                                                                            }
                                                                                            if (cb.cancelled) {
                                                                                            if (expectsCSS) {
                                                                                            removeTransitionClass(el, leaveClass);
                                                                                            }
                                                                                            leaveCancelled && leaveCancelled(el);
                                                                                            } else {
                                                                                            rm();
                                                                                            afterLeave && afterLeave(el);
                                                                                            }
                                                                                            el._leaveCb = null;
                                                                                            });
                                                                
                                                                if (delayLeave) {
                                                                delayLeave(performLeave);
                                                                } else {
                                                                performLeave();
                                                                }
                                                                
                                                                function performLeave () {
                                                                // the delayed leave may have already been cancelled
                                                                if (cb.cancelled) {
                                                                return
                                                                }
                                                                // record leaving element
                                                                if (!vnode.data.show) {
                                                                (el.parentNode._pending || (el.parentNode._pending = {}))[vnode.key] = vnode;
                                                                }
                                                                beforeLeave && beforeLeave(el);
                                                                if (expectsCSS) {
                                                                addTransitionClass(el, leaveClass);
                                                                addTransitionClass(el, leaveActiveClass);
                                                                nextFrame(function () {
                                                                          addTransitionClass(el, leaveToClass);
                                                                          removeTransitionClass(el, leaveClass);
                                                                          if (!cb.cancelled && !userWantsControl) {
                                                                          if (isValidDuration(explicitLeaveDuration)) {
                                                                          setTimeout(cb, explicitLeaveDuration);
                                                                          } else {
                                                                          whenTransitionEnds(el, type, cb);
                                                                          }
                                                                          }
                                                                          });
                                                                }
                                                                leave && leave(el, cb);
                                                                if (!expectsCSS && !userWantsControl) {
                                                                cb();
                                                                }
                                                                }
                                                                }
                                                                
                                                                // only used in dev mode
                                                                function checkDuration (val, name, vnode) {
                                                                if (typeof val !== 'number') {
                                                                warn(
                                                                     "<transition> explicit " + name + " duration is not a valid number - " +
                                                                     "got " + (JSON.stringify(val)) + ".",
                                                                     vnode.context
                                                                     );
                                                                } else if (isNaN(val)) {
                                                                warn(
                                                                     "<transition> explicit " + name + " duration is NaN - " +
                                                                     'the duration expression might be incorrect.',
                                                                     vnode.context
                                                                     );
                                                                }
                                                                }
                                                                
                                                                function isValidDuration (val) {
                                                                return typeof val === 'number' && !isNaN(val)
                                                                }
                                                                
/**
 * Normalize a transition hook's argument length. The hook may be:
 * - a merged hook (invoker) with the original in .fns
 * - a wrapped component method (check ._length)
 * - a plain function (.length)
 */
                                                                function getHookArgumentsLength (fn) {
                                                                if (isUndef(fn)) {
                                                                return false
                                                                }
                                                                var invokerFns = fn.fns;
                                                                if (isDef(invokerFns)) {
                                                                // invoker
                                                                return getHookArgumentsLength(
                                                                                              Array.isArray(invokerFns)
                                                                                              ? invokerFns[0]
                                                                                              : invokerFns
                                                                                              )
                                                                } else {
                                                                return (fn._length || fn.length) > 1
                                                                }
                                                                }
                                                                
                                                                function _enter (_, vnode) {
                                                                if (vnode.data.show !== true) {
                                                                enter(vnode);
                                                                }
                                                                }
                                                                
                                                                var transition = inBrowser ? {
                                                                create: _enter,
                                                                activate: _enter,
                                                                remove: function remove$$1 (vnode, rm) {
                                                                /* istanbul ignore else */
                                                                if (vnode.data.show !== true) {
                                                                leave(vnode, rm);
                                                                } else {
                                                                rm();
                                                                }
                                                                }
                                                                } : {};
                                                                
                                                                var platformModules = [
                                                                                       attrs,
                                                                                       klass,
                                                                                       events,
                                                                                       domProps,
                                                                                       style,
                                                                                       transition
                                                                                       ];
                                                                
/*  */
                                                                
                                                                // the directive module should be applied last, after all
                                                                // built-in modules have been applied.
                                                                var modules = platformModules.concat(baseModules);
                                                                
                                                                var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
                                                                
/**
 * Not type checking this file because flow doesn't like attaching
 * properties to Elements.
 */
                                                                
/* istanbul ignore if */
                                                                if (isIE9) {
                                                                // http://www.matts411.com/post/internet-explorer-9-oninput/
                                                                document.addEventListener('selectionchange', function () {
                                                                                          var el = document.activeElement;
                                                                                          if (el && el.vmodel) {
                                                                                          trigger(el, 'input');
                                                                                          }
                                                                                          });
                                                                }
                                                                
                                                                var model$1 = {
                                                                inserted: function inserted (el, binding, vnode) {
                                                                if (vnode.tag === 'select') {
                                                                var cb = function () {
                                                                setSelected(el, binding, vnode.context);
                                                                };
                                                                cb();
                                                                /* istanbul ignore if */
                                                                if (isIE || isEdge) {
                                                                setTimeout(cb, 0);
                                                                }
                                                                } else if (vnode.tag === 'textarea' || el.type === 'text' || el.type === 'password') {
                                                                el._vModifiers = binding.modifiers;
                                                                if (!binding.modifiers.lazy) {
                                                                // Safari < 10.2 & UIWebView doesn't fire compositionend when
                                                                // switching focus before confirming composition choice
                                                                // this also fixes the issue where some browsers e.g. iOS Chrome
                                                                // fires "change" instead of "input" on autocomplete.
                                                                el.addEventListener('change', onCompositionEnd);
                                                                if (!isAndroid) {
                                                                el.addEventListener('compositionstart', onCompositionStart);
                                                                el.addEventListener('compositionend', onCompositionEnd);
                                                                }
                                                                /* istanbul ignore if */
                                                                if (isIE9) {
                                                                el.vmodel = true;
                                                                }
                                                                }
                                                                }
                                                                },
                                                                componentUpdated: function componentUpdated (el, binding, vnode) {
                                                                if (vnode.tag === 'select') {
                                                                setSelected(el, binding, vnode.context);
                                                                // in case the options rendered by v-for have changed,
                                                                // it's possible that the value is out-of-sync with the rendered options.
                                                                // detect such cases and filter out values that no longer has a matching
                                                                // option in the DOM.
                                                                var needReset = el.multiple
                                                                ? binding.value.some(function (v) { return hasNoMatchingOption(v, el.options); })
                                                                : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, el.options);
                                                                if (needReset) {
                                                                trigger(el, 'change');
                                                                }
                                                                }
                                                                }
                                                                };
                                                                
                                                                function setSelected (el, binding, vm) {
                                                                var value = binding.value;
                                                                var isMultiple = el.multiple;
                                                                if (isMultiple && !Array.isArray(value)) {
                                                                "development" !== 'production' && warn(
                                                                                                       "<select multiple v-model=\"" + (binding.expression) + "\"> " +
                                                                                                       "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
                                                                                                       vm
                                                                                                       );
                                                                return
                                                                }
                                                                var selected, option;
                                                                for (var i = 0, l = el.options.length; i < l; i++) {
                                                                option = el.options[i];
                                                                if (isMultiple) {
                                                                selected = looseIndexOf(value, getValue(option)) > -1;
                                                                if (option.selected !== selected) {
                                                                option.selected = selected;
                                                                }
                                                                } else {
                                                                if (looseEqual(getValue(option), value)) {
                                                                if (el.selectedIndex !== i) {
                                                                el.selectedIndex = i;
                                                                }
                                                                return
                                                                }
                                                                }
                                                                }
                                                                if (!isMultiple) {
                                                                el.selectedIndex = -1;
                                                                }
                                                                }
                                                                
                                                                function hasNoMatchingOption (value, options) {
                                                                for (var i = 0, l = options.length; i < l; i++) {
                                                                if (looseEqual(getValue(options[i]), value)) {
                                                                return false
                                                                }
                                                                }
                                                                return true
                                                                }
                                                                
                                                                function getValue (option) {
                                                                return '_value' in option
                                                                ? option._value
                                                                : option.value
                                                                }
                                                                
                                                                function onCompositionStart (e) {
                                                                e.target.composing = true;
                                                                }
                                                                
                                                                function onCompositionEnd (e) {
                                                                e.target.composing = false;
                                                                trigger(e.target, 'input');
                                                                }
                                                                
                                                                function trigger (el, type) {
                                                                var e = document.createEvent('HTMLEvents');
                                                                e.initEvent(type, true, true);
                                                                el.dispatchEvent(e);
                                                                }
                                                                
/*  */
                                                                
                                                                // recursively search for possible transition defined inside the component root
                                                                function locateNode (vnode) {
                                                                return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
                                                                ? locateNode(vnode.componentInstance._vnode)
                                                                : vnode
                                                                }
                                                                
                                                                var show = {
                                                                bind: function bind (el, ref, vnode) {
                                                                var value = ref.value;
                                                                
                                                                vnode = locateNode(vnode);
                                                                var transition = vnode.data && vnode.data.transition;
                                                                var originalDisplay = el.__vOriginalDisplay =
                                                                el.style.display === 'none' ? '' : el.style.display;
                                                                if (value && transition && !isIE9) {
                                                                vnode.data.show = true;
                                                                enter(vnode, function () {
                                                                      el.style.display = originalDisplay;
                                                                      });
                                                                } else {
                                                                el.style.display = value ? originalDisplay : 'none';
                                                                }
                                                                },
                                                                
                                                                update: function update (el, ref, vnode) {
                                                                var value = ref.value;
                                                                var oldValue = ref.oldValue;
                                                                
                                                                /* istanbul ignore if */
                                                                if (value === oldValue) { return }
                                                                vnode = locateNode(vnode);
                                                                var transition = vnode.data && vnode.data.transition;
                                                                if (transition && !isIE9) {
                                                                vnode.data.show = true;
                                                                if (value) {
                                                                enter(vnode, function () {
                                                                      el.style.display = el.__vOriginalDisplay;
                                                                      });
                                                                } else {
                                                                leave(vnode, function () {
                                                                      el.style.display = 'none';
                                                                      });
                                                                }
                                                                } else {
                                                                el.style.display = value ? el.__vOriginalDisplay : 'none';
                                                                }
                                                                },
                                                                
                                                                unbind: function unbind (
                                                                                         el,
                                                                                         binding,
                                                                                         vnode,
                                                                                         oldVnode,
                                                                                         isDestroy
                                                                                         ) {
                                                                if (!isDestroy) {
                                                                el.style.display = el.__vOriginalDisplay;
                                                                }
                                                                }
                                                                };
                                                                
                                                                var platformDirectives = {
                                                                model: model$1,
                                                                show: show
                                                                };
                                                                
/*  */
                                                                
                                                                // Provides transition support for a single element/component.
                                                                // supports transition mode (out-in / in-out)
                                                                
                                                                var transitionProps = {
                                                                name: String,
                                                                appear: Boolean,
                                                                css: Boolean,
                                                                mode: String,
                                                                type: String,
                                                                enterClass: String,
                                                                leaveClass: String,
                                                                enterToClass: String,
                                                                leaveToClass: String,
                                                                enterActiveClass: String,
                                                                leaveActiveClass: String,
                                                                appearClass: String,
                                                                appearActiveClass: String,
                                                                appearToClass: String,
                                                                duration: [Number, String, Object]
                                                                };
                                                                
                                                                // in case the child is also an abstract component, e.g. <keep-alive>
                                                                // we want to recursively retrieve the real component to be rendered
                                                                function getRealChild (vnode) {
                                                                var compOptions = vnode && vnode.componentOptions;
                                                                if (compOptions && compOptions.Ctor.options.abstract) {
                                                                return getRealChild(getFirstComponentChild(compOptions.children))
                                                                } else {
                                                                return vnode
                                                                }
                                                                }
                                                                
                                                                function extractTransitionData (comp) {
                                                                var data = {};
                                                                var options = comp.$options;
                                                                // props
                                                                for (var key in options.propsData) {
                                                                data[key] = comp[key];
                                                                }
                                                                // events.
                                                                // extract listeners and pass them directly to the transition methods
                                                                var listeners = options._parentListeners;
                                                                for (var key$1 in listeners) {
                                                                data[camelize(key$1)] = listeners[key$1];
                                                                }
                                                                return data
                                                                }
                                                                
                                                                function placeholder (h, rawChild) {
                                                                if (/\d-keep-alive$/.test(rawChild.tag)) {
                                                                return h('keep-alive', {
                                                                         props: rawChild.componentOptions.propsData
                                                                         })
                                                                }
                                                                }
                                                                
                                                                function hasParentTransition (vnode) {
                                                                while ((vnode = vnode.parent)) {
                                                                if (vnode.data.transition) {
                                                                return true
                                                                }
                                                                }
                                                                }
                                                                
                                                                function isSameChild (child, oldChild) {
                                                                return oldChild.key === child.key && oldChild.tag === child.tag
                                                                }
                                                                
                                                                var Transition = {
                                                                name: 'transition',
                                                                props: transitionProps,
                                                                abstract: true,
                                                                
                                                                render: function render (h) {
                                                                var this$1 = this;
                                                                
                                                                var children = this.$slots.default;
                                                                if (!children) {
                                                                return
                                                                }
                                                                
                                                                // filter out text nodes (possible whitespaces)
                                                                children = children.filter(function (c) { return c.tag; });
                                                                /* istanbul ignore if */
                                                                if (!children.length) {
                                                                return
                                                                }
                                                                
                                                                // warn multiple elements
                                                                if ("development" !== 'production' && children.length > 1) {
                                                                warn(
                                                                     '<transition> can only be used on a single element. Use ' +
                                                                     '<transition-group> for lists.',
                                                                     this.$parent
                                                                     );
                                                                }
                                                                
                                                                var mode = this.mode;
                                                                
                                                                // warn invalid mode
                                                                if ("development" !== 'production' &&
                                                                    mode && mode !== 'in-out' && mode !== 'out-in') {
                                                                warn(
                                                                     'invalid <transition> mode: ' + mode,
                                                                     this.$parent
                                                                     );
                                                                }
                                                                
                                                                var rawChild = children[0];
                                                                
                                                                // if this is a component root node and the component's
                                                                // parent container node also has transition, skip.
                                                                if (hasParentTransition(this.$vnode)) {
                                                                return rawChild
                                                                }
                                                                
                                                                // apply transition data to child
                                                                // use getRealChild() to ignore abstract components e.g. keep-alive
                                                                var child = getRealChild(rawChild);
                                                                /* istanbul ignore if */
                                                                if (!child) {
                                                                return rawChild
                                                                }
                                                                
                                                                if (this._leaving) {
                                                                return placeholder(h, rawChild)
                                                                }
                                                                
                                                                // ensure a key that is unique to the vnode type and to this transition
                                                                // component instance. This key will be used to remove pending leaving nodes
                                                                // during entering.
                                                                var id = "__transition-" + (this._uid) + "-";
                                                                child.key = child.key == null
                                                                ? id + child.tag
                                                                : isPrimitive(child.key)
                                                                ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
                                                                : child.key;
                                                                
                                                                var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
                                                                var oldRawChild = this._vnode;
                                                                var oldChild = getRealChild(oldRawChild);
                                                                
                                                                // mark v-show
                                                                // so that the transition module can hand over the control to the directive
                                                                if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
                                                                child.data.show = true;
                                                                }
                                                                
                                                                if (oldChild && oldChild.data && !isSameChild(child, oldChild)) {
                                                                // replace old child transition data with fresh one
                                                                // important for dynamic transitions!
                                                                var oldData = oldChild && (oldChild.data.transition = extend({}, data));
                                                                // handle transition mode
                                                                if (mode === 'out-in') {
                                                                // return placeholder node and queue update when leave finishes
                                                                this._leaving = true;
                                                                mergeVNodeHook(oldData, 'afterLeave', function () {
                                                                               this$1._leaving = false;
                                                                               this$1.$forceUpdate();
                                                                               });
                                                                return placeholder(h, rawChild)
                                                                } else if (mode === 'in-out') {
                                                                var delayedLeave;
                                                                var performLeave = function () { delayedLeave(); };
                                                                mergeVNodeHook(data, 'afterEnter', performLeave);
                                                                mergeVNodeHook(data, 'enterCancelled', performLeave);
                                                                mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
                                                                }
                                                                }
                                                                
                                                                return rawChild
                                                                }
                                                                };
                                                                
/*  */
                                                                
                                                                // Provides transition support for list items.
                                                                // supports move transitions using the FLIP technique.
                                                                
                                                                // Because the vdom's children update algorithm is "unstable" - i.e.
                                                                // it doesn't guarantee the relative positioning of removed elements,
                                                                // we force transition-group to update its children into two passes:
                                                                // in the first pass, we remove all nodes that need to be removed,
                                                                // triggering their leaving transition; in the second pass, we insert/move
                                                                // into the final desired state. This way in the second pass removed
                                                                // nodes will remain where they should be.
                                                                
                                                                var props = extend({
                                                                                   tag: String,
                                                                                   moveClass: String
                                                                                   }, transitionProps);
                                                                
                                                                delete props.mode;
                                                                
                                                                var TransitionGroup = {
                                                                props: props,
                                                                
                                                                render: function render (h) {
                                                                var tag = this.tag || this.$vnode.data.tag || 'span';
                                                                var map = Object.create(null);
                                                                var prevChildren = this.prevChildren = this.children;
                                                                var rawChildren = this.$slots.default || [];
                                                                var children = this.children = [];
                                                                var transitionData = extractTransitionData(this);
                                                                
                                                                for (var i = 0; i < rawChildren.length; i++) {
                                                                var c = rawChildren[i];
                                                                if (c.tag) {
                                                                if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
                                                                children.push(c);
                                                                map[c.key] = c
                                                                ;(c.data || (c.data = {})).transition = transitionData;
                                                                } else {
                                                                var opts = c.componentOptions;
                                                                var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
                                                                warn(("<transition-group> children must be keyed: <" + name + ">"));
                                                                }
                                                                }
                                                                }
                                                                
                                                                if (prevChildren) {
                                                                var kept = [];
                                                                var removed = [];
                                                                for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
                                                                var c$1 = prevChildren[i$1];
                                                                c$1.data.transition = transitionData;
                                                                c$1.data.pos = c$1.elm.getBoundingClientRect();
                                                                if (map[c$1.key]) {
                                                                kept.push(c$1);
                                                                } else {
                                                                removed.push(c$1);
                                                                }
                                                                }
                                                                this.kept = h(tag, null, kept);
                                                                this.removed = removed;
                                                                }
                                                                
                                                                return h(tag, null, children)
                                                                },
                                                                
                                                                beforeUpdate: function beforeUpdate () {
                                                                // force removing pass
                                                                this.__patch__(
                                                                               this._vnode,
                                                                               this.kept,
                                                                               false, // hydrating
                                                                               true // removeOnly (!important, avoids unnecessary moves)
                                                                               );
                                                                this._vnode = this.kept;
                                                                },
                                                                
                                                                updated: function updated () {
                                                                var children = this.prevChildren;
                                                                var moveClass = this.moveClass || ((this.name || 'v') + '-move');
                                                                if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
                                                                return
                                                                }
                                                                
                                                                // we divide the work into three loops to avoid mixing DOM reads and writes
                                                                // in each iteration - which helps prevent layout thrashing.
                                                                children.forEach(callPendingCbs);
                                                                children.forEach(recordPosition);
                                                                children.forEach(applyTranslation);
                                                                
                                                                // force reflow to put everything in position
                                                                var body = document.body;
                                                                var f = body.offsetHeight; // eslint-disable-line
                                                                
                                                                children.forEach(function (c) {
                                                                                 if (c.data.moved) {
                                                                                 var el = c.elm;
                                                                                 var s = el.style;
                                                                                 addTransitionClass(el, moveClass);
                                                                                 s.transform = s.WebkitTransform = s.transitionDuration = '';
                                                                                 el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
                                                                                                     if (!e || /transform$/.test(e.propertyName)) {
                                                                                                     el.removeEventListener(transitionEndEvent, cb);
                                                                                                     el._moveCb = null;
                                                                                                     removeTransitionClass(el, moveClass);
                                                                                                     }
                                                                                                     });
                                                                                 }
                                                                                 });
                                                                },
                                                                
                                                                methods: {
                                                                hasMove: function hasMove (el, moveClass) {
                                                                /* istanbul ignore if */
                                                                if (!hasTransition) {
                                                                return false
                                                                }
                                                                if (this._hasMove != null) {
                                                                return this._hasMove
                                                                }
                                                                // Detect whether an element with the move class applied has
                                                                // CSS transitions. Since the element may be inside an entering
                                                                // transition at this very moment, we make a clone of it and remove
                                                                // all other transition classes applied to ensure only the move class
                                                                // is applied.
                                                                var clone = el.cloneNode();
                                                                if (el._transitionClasses) {
                                                                el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
                                                                }
                                                                addClass(clone, moveClass);
                                                                clone.style.display = 'none';
                                                                this.$el.appendChild(clone);
                                                                var info = getTransitionInfo(clone);
                                                                this.$el.removeChild(clone);
                                                                return (this._hasMove = info.hasTransform)
                                                                }
                                                                }
                                                                };
                                                                
                                                                function callPendingCbs (c) {
                                                                /* istanbul ignore if */
                                                                if (c.elm._moveCb) {
                                                                c.elm._moveCb();
                                                                }
                                                                /* istanbul ignore if */
                                                                if (c.elm._enterCb) {
                                                                c.elm._enterCb();
                                                                }
                                                                }
                                                                
                                                                function recordPosition (c) {
                                                                c.data.newPos = c.elm.getBoundingClientRect();
                                                                }
                                                                
                                                                function applyTranslation (c) {
                                                                var oldPos = c.data.pos;
                                                                var newPos = c.data.newPos;
                                                                var dx = oldPos.left - newPos.left;
                                                                var dy = oldPos.top - newPos.top;
                                                                if (dx || dy) {
                                                                c.data.moved = true;
                                                                var s = c.elm.style;
                                                                s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
                                                                s.transitionDuration = '0s';
                                                                }
                                                                }
                                                                
                                                                var platformComponents = {
                                                                Transition: Transition,
                                                                TransitionGroup: TransitionGroup
                                                                };
                                                                
/*  */
                                                                
                                                                // install platform specific utils
                                                                Vue$3.config.mustUseProp = mustUseProp;
                                                                Vue$3.config.isReservedTag = isReservedTag;
                                                                Vue$3.config.isReservedAttr = isReservedAttr;
                                                                Vue$3.config.getTagNamespace = getTagNamespace;
                                                                Vue$3.config.isUnknownElement = isUnknownElement;
                                                                
                                                                // install platform runtime directives & components
                                                                extend(Vue$3.options.directives, platformDirectives);
                                                                extend(Vue$3.options.components, platformComponents);
                                                                
                                                                // install platform patch function
                                                                Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
                                                                
                                                                // public mount method
                                                                Vue$3.prototype.$mount = function (
                                                                                                   el,
                                                                                                   hydrating
                                                                                                   ) {
                                                                el = el && inBrowser ? query(el) : undefined;
                                                                return mountComponent(this, el, hydrating)
                                                                };
                                                                
                                                                // devtools global hook
/* istanbul ignore next */
                                                                setTimeout(function () {
                                                                           if (config.devtools) {
                                                                           if (devtools) {
                                                                           devtools.emit('init', Vue$3);
                                                                           } else if ("development" !== 'production' && isChrome) {
                                                                           console[console.info ? 'info' : 'log'](
                                                                                                                  'Download the Vue Devtools extension for a better development experience:\n' +
                                                                                                                  'https://github.com/vuejs/vue-devtools'
                                                                                                                  );
                                                                           }
                                                                           }
                                                                           if ("development" !== 'production' &&
                                                                               config.productionTip !== false &&
                                                                               inBrowser && typeof console !== 'undefined') {
                                                                           console[console.info ? 'info' : 'log'](
                                                                                                                  "You are running Vue in development mode.\n" +
                                                                                                                  "Make sure to turn on production mode when deploying for production.\n" +
                                                                                                                  "See more tips at https://vuejs.org/guide/deployment.html"
                                                                                                                  );
                                                                           }
                                                                           }, 0);
                                                                
/*  */
                                                                
                                                                // check whether current browser encodes a char inside attribute values
                                                                function shouldDecode (content, encoded) {
                                                                var div = document.createElement('div');
                                                                div.innerHTML = "<div a=\"" + content + "\">";
                                                                return div.innerHTML.indexOf(encoded) > 0
                                                                }
                                                                
                                                                // #3663
                                                                // IE encodes newlines inside attribute values while other browsers don't
                                                                var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false;
                                                                
/*  */
                                                                
                                                                var isUnaryTag = makeMap(
                                                                                         'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
                                                                                         'link,meta,param,source,track,wbr'
                                                                                         );
                                                                
                                                                // Elements that you can, intentionally, leave open
                                                                // (and which close themselves)
                                                                var canBeLeftOpenTag = makeMap(
                                                                                               'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
                                                                                               );
                                                                
                                                                // HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
                                                                // Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
                                                                var isNonPhrasingTag = makeMap(
                                                                                               'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
                                                                                               'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
                                                                                               'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
                                                                                               'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
                                                                                               'title,tr,track'
                                                                                               );
                                                                
/*  */
                                                                
                                                                var decoder;
                                                                
                                                                function decode (html) {
                                                                decoder = decoder || document.createElement('div');
                                                                decoder.innerHTML = html;
                                                                return decoder.textContent
                                                                }
                                                                
/**
 * Not type-checking this file because it's mostly vendor code.
 */
                                                                
/*!
 * HTML Parser By John Resig (ejohn.org)
 * Modified by Juriy "kangax" Zaytsev
 * Original code by Erik Arvidsson, Mozilla Public License
 * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
 */
                                                                
                                                                // Regular Expressions for parsing tags and attributes
                                                                var singleAttrIdentifier = /([^\s"'<>/=]+)/;
                                                                                              var singleAttrAssign = /(?:=)/;
                                                                                              var singleAttrValues = [
                                                                                                                      // attr value double quotes
                                                                                                                      /"([^"]*)"+/.source,
                                                                                              // attr value, single quotes
                                                                                              /'([^']*)'+/.source,
                                                                // attr value, no quotes
                                                                /([^\s"'=<>`]+)/.source
                                                                   ];
                                                                  var attribute = new RegExp(
                                                                                             '^\\s*' + singleAttrIdentifier.source +
                                                                                             '(?:\\s*(' + singleAttrAssign.source + ')' +
                                                                                             '\\s*(?:' + singleAttrValues.join('|') + '))?'
                                                                                             );
                                                                  
                                                                  // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
                                                                  // but for Vue templates we can enforce a simple charset
                                                                  var ncname = '[a-zA-Z_][\\w\\-\\.]*';
                                                                  var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
                                                                  var startTagOpen = new RegExp('^<' + qnameCapture);
                                                                  var startTagClose = /^\s*(\/?)>/;
                                                                  var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
                                                                  var doctype = /^<!DOCTYPE [^>]+>/i;
                                                                  var comment = /^<!--/;
                                                                  var conditionalComment = /^<!\[/;
                                                                                                 
                                                                                                 var IS_REGEX_CAPTURING_BROKEN = false;
                                                                                                 'x'.replace(/x(.)?/g, function (m, g) {
                                                                                                             IS_REGEX_CAPTURING_BROKEN = g === '';
                                                                                                             });
                                                                                                 
                                                                                                 // Special Elements (can contain anything)
                                                                                                 var isPlainTextElement = makeMap('script,style,textarea', true);
                                                                                                 var reCache = {};
                                                                                                 
                                                                                                 var decodingMap = {
                                                                                                 '&lt;': '<',
                                                                                                 '&gt;': '>',
                                                                                                 '&quot;': '"',
                                                                                                 '&amp;': '&',
                                                                                                 '&#10;': '\n'
                                                                                                 };
                                                                                                 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
                                                                                                 var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
                                                                                                 
                                                                                                 function decodeAttr (value, shouldDecodeNewlines) {
                                                                                                 var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
                                                                                                 return value.replace(re, function (match) { return decodingMap[match]; })
                                                                                                 }
                                                                                                 
                                                                                                 function parseHTML (html, options) {
                                                                                                 var stack = [];
                                                                                                 var expectHTML = options.expectHTML;
                                                                                                 var isUnaryTag$$1 = options.isUnaryTag || no;
                                                                                                 var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
                                                                                                 var index = 0;
                                                                                                 var last, lastTag;
                                                                                                 while (html) {
                                                                                                 last = html;
                                                                                                 // Make sure we're not in a plaintext content element like script/style
                                                                                                 if (!lastTag || !isPlainTextElement(lastTag)) {
                                                                                                 var textEnd = html.indexOf('<');
                                                                                                 if (textEnd === 0) {
                                                                                                 // Comment:
                                                                                                 if (comment.test(html)) {
                                                                                                 var commentEnd = html.indexOf('-->');
                                                                                                 
                                                                                                 if (commentEnd >= 0) {
                                                                                                 advance(commentEnd + 3);
                                                                                                 continue
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
                                                                                                 if (conditionalComment.test(html)) {
                                                                                                 var conditionalEnd = html.indexOf(']>');
                                                                                                 
                                                                                                 if (conditionalEnd >= 0) {
                                                                                                 advance(conditionalEnd + 2);
                                                                                                 continue
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 // Doctype:
                                                                                                 var doctypeMatch = html.match(doctype);
                                                                                                 if (doctypeMatch) {
                                                                                                 advance(doctypeMatch[0].length);
                                                                                                 continue
                                                                                                 }
                                                                                                 
                                                                                                 // End tag:
                                                                                                 var endTagMatch = html.match(endTag);
                                                                                                 if (endTagMatch) {
                                                                                                 var curIndex = index;
                                                                                                 advance(endTagMatch[0].length);
                                                                                                 parseEndTag(endTagMatch[1], curIndex, index);
                                                                                                 continue
                                                                                                 }
                                                                                                 
                                                                                                 // Start tag:
                                                                                                 var startTagMatch = parseStartTag();
                                                                                                 if (startTagMatch) {
                                                                                                 handleStartTag(startTagMatch);
                                                                                                 continue
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 var text = (void 0), rest$1 = (void 0), next = (void 0);
                                                                                                 if (textEnd >= 0) {
                                                                                                 rest$1 = html.slice(textEnd);
                                                                                                 while (
                                                                                                        !endTag.test(rest$1) &&
                                                                                                        !startTagOpen.test(rest$1) &&
                                                                                                        !comment.test(rest$1) &&
                                                                                                        !conditionalComment.test(rest$1)
                                                                                                        ) {
                                                                                                 // < in plain text, be forgiving and treat it as text
                                                                                                 next = rest$1.indexOf('<', 1);
                                                                                                 if (next < 0) { break }
                                                                                                 textEnd += next;
                                                                                                 rest$1 = html.slice(textEnd);
                                                                                                 }
                                                                                                 text = html.substring(0, textEnd);
                                                                                                 advance(textEnd);
                                                                                                 }
                                                                                                 
                                                                                                 if (textEnd < 0) {
                                                                                                 text = html;
                                                                                                 html = '';
                                                                                                 }
                                                                                                 
                                                                                                 if (options.chars && text) {
                                                                                                 options.chars(text);
                                                                                                 }
                                                                                                 } else {
                                                                                                 var stackedTag = lastTag.toLowerCase();
                                                                                                 var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
                                                                                                 var endTagLength = 0;
                                                                                                 var rest = html.replace(reStackedTag, function (all, text, endTag) {
                                                                                                                         endTagLength = endTag.length;
                                                                                                                         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
                                                                                                                         text = text
                                                                                                                         .replace(/<!--([\s\S]*?)-->/g, '$1')
                                                                                                                         .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
                                                                                                                         }
                                                                                                                         if (options.chars) {
                                                                                                                         options.chars(text);
                                                                                                                         }
                                                                                                                         return ''
                                                                                                                         });
                                                                                                 index += html.length - rest.length;
                                                                                                 html = rest;
                                                                                                 parseEndTag(stackedTag, index - endTagLength, index);
                                                                                                 }
                                                                                                 
                                                                                                 if (html === last) {
                                                                                                 options.chars && options.chars(html);
                                                                                                 if ("development" !== 'production' && !stack.length && options.warn) {
                                                                                                 options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
                                                                                                 }
                                                                                                 break
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 // Clean up any remaining tags
                                                                                                 parseEndTag();
                                                                                                 
                                                                                                 function advance (n) {
                                                                                                 index += n;
                                                                                                 html = html.substring(n);
                                                                                                 }
                                                                                                 
                                                                                                 function parseStartTag () {
                                                                                                 var start = html.match(startTagOpen);
                                                                                                 if (start) {
                                                                                                 var match = {
                                                                                                 tagName: start[1],
                                                                                                 attrs: [],
                                                                                                 start: index
                                                                                                 };
                                                                                                 advance(start[0].length);
                                                                                                 var end, attr;
                                                                                                 while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
                                                                                                 advance(attr[0].length);
                                                                                                 match.attrs.push(attr);
                                                                                                 }
                                                                                                 if (end) {
                                                                                                 match.unarySlash = end[1];
                                                                                                 advance(end[0].length);
                                                                                                 match.end = index;
                                                                                                 return match
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function handleStartTag (match) {
                                                                                                 var tagName = match.tagName;
                                                                                                 var unarySlash = match.unarySlash;
                                                                                                 
                                                                                                 if (expectHTML) {
                                                                                                 if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
                                                                                                 parseEndTag(lastTag);
                                                                                                 }
                                                                                                 if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
                                                                                                 parseEndTag(tagName);
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 var unary = isUnaryTag$$1(tagName) || tagName === 'html' && lastTag === 'head' || !!unarySlash;
                                                                                                 
                                                                                                 var l = match.attrs.length;
                                                                                                 var attrs = new Array(l);
                                                                                                 for (var i = 0; i < l; i++) {
                                                                                                 var args = match.attrs[i];
                                                                                                 // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
                                                                                                 if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
                                                                                                 if (args[3] === '') { delete args[3]; }
                                                                                                 if (args[4] === '') { delete args[4]; }
                                                                                                 if (args[5] === '') { delete args[5]; }
                                                                                                 }
                                                                                                 var value = args[3] || args[4] || args[5] || '';
                                                                                                 attrs[i] = {
                                                                                                 name: args[1],
                                                                                                 value: decodeAttr(
                                                                                                                   value,
                                                                                                                   options.shouldDecodeNewlines
                                                                                                                   )
                                                                                                 };
                                                                                                 }
                                                                                                 
                                                                                                 if (!unary) {
                                                                                                 stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
                                                                                                 lastTag = tagName;
                                                                                                 }
                                                                                                 
                                                                                                 if (options.start) {
                                                                                                 options.start(tagName, attrs, unary, match.start, match.end);
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function parseEndTag (tagName, start, end) {
                                                                                                 var pos, lowerCasedTagName;
                                                                                                 if (start == null) { start = index; }
                                                                                                 if (end == null) { end = index; }
                                                                                                 
                                                                                                 if (tagName) {
                                                                                                 lowerCasedTagName = tagName.toLowerCase();
                                                                                                 }
                                                                                                 
                                                                                                 // Find the closest opened tag of the same type
                                                                                                 if (tagName) {
                                                                                                 for (pos = stack.length - 1; pos >= 0; pos--) {
                                                                                                 if (stack[pos].lowerCasedTag === lowerCasedTagName) {
                                                                                                 break
                                                                                                 }
                                                                                                 }
                                                                                                 } else {
                                                                                                 // If no tag name is provided, clean shop
                                                                                                 pos = 0;
                                                                                                 }
                                                                                                 
                                                                                                 if (pos >= 0) {
                                                                                                 // Close all the open elements, up the stack
                                                                                                 for (var i = stack.length - 1; i >= pos; i--) {
                                                                                                 if ("development" !== 'production' &&
                                                                                                     (i > pos || !tagName) &&
                                                                                                     options.warn) {
                                                                                                 options.warn(
                                                                                                              ("tag <" + (stack[i].tag) + "> has no matching end tag.")
                                                                                                              );
                                                                                                 }
                                                                                                 if (options.end) {
                                                                                                 options.end(stack[i].tag, start, end);
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 // Remove the open elements from the stack
                                                                                                 stack.length = pos;
                                                                                                 lastTag = pos && stack[pos - 1].tag;
                                                                                                 } else if (lowerCasedTagName === 'br') {
                                                                                                 if (options.start) {
                                                                                                 options.start(tagName, [], true, start, end);
                                                                                                 }
                                                                                                 } else if (lowerCasedTagName === 'p') {
                                                                                                 if (options.start) {
                                                                                                 options.start(tagName, [], false, start, end);
                                                                                                 }
                                                                                                 if (options.end) {
                                                                                                 options.end(tagName, start, end);
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
/*  */
                                                                                                 
                                                                                                 var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
                                                                                                 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
                                                                                                 
                                                                                                 var buildRegex = cached(function (delimiters) {
                                                                                                                         var open = delimiters[0].replace(regexEscapeRE, '\\$&');
                                                                                                                         var close = delimiters[1].replace(regexEscapeRE, '\\$&');
                                                                                                                         return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
                                                                                                                         });
                                                                                                 
                                                                                                 function parseText (
                                                                                                                     text,
                                                                                                                     delimiters
                                                                                                                     ) {
                                                                                                 var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
                                                                                                 if (!tagRE.test(text)) {
                                                                                                 return
                                                                                                 }
                                                                                                 var tokens = [];
                                                                                                 var lastIndex = tagRE.lastIndex = 0;
                                                                                                 var match, index;
                                                                                                 while ((match = tagRE.exec(text))) {
                                                                                                 index = match.index;
                                                                                                 // push text token
                                                                                                 if (index > lastIndex) {
                                                                                                 tokens.push(JSON.stringify(text.slice(lastIndex, index)));
                                                                                                 }
                                                                                                 // tag token
                                                                                                 var exp = parseFilters(match[1].trim());
                                                                                                 tokens.push(("_s(" + exp + ")"));
                                                                                                 lastIndex = index + match[0].length;
                                                                                                 }
                                                                                                 if (lastIndex < text.length) {
                                                                                                 tokens.push(JSON.stringify(text.slice(lastIndex)));
                                                                                                 }
                                                                                                 return tokens.join('+')
                                                                                                 }
                                                                                                 
/*  */
                                                                                                 
                                                                                                 var onRE = /^@|^v-on:/;
                                                                                                 var dirRE = /^v-|^@|^:/;
                                                                                                 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
                                                                                                 var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
                                                                                                 
                                                                                                 var argRE = /:(.*)$/;
                                                                                                 var bindRE = /^:|^v-bind:/;
                                                                                                 var modifierRE = /\.[^.]+/g;
                                                                                                 
                                                                                                 var decodeHTMLCached = cached(decode);
                                                                                                 
                                                                                                 // configurable state
                                                                                                 var warn$2;
                                                                                                 var delimiters;
                                                                                                 var transforms;
                                                                                                 var preTransforms;
                                                                                                 var postTransforms;
                                                                                                 var platformIsPreTag;
                                                                                                 var platformMustUseProp;
                                                                                                 var platformGetTagNamespace;
                                                                                                 
/**
 * Convert HTML string to AST.
 */
                                                                                                 function parse (
                                                                                                                 template,
                                                                                                                 options
                                                                                                                 ) {
                                                                                                 warn$2 = options.warn || baseWarn;
                                                                                                 platformGetTagNamespace = options.getTagNamespace || no;
                                                                                                 platformMustUseProp = options.mustUseProp || no;
                                                                                                 platformIsPreTag = options.isPreTag || no;
                                                                                                 preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
                                                                                                 transforms = pluckModuleFunction(options.modules, 'transformNode');
                                                                                                 postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
                                                                                                 delimiters = options.delimiters;
                                                                                                 
                                                                                                 var stack = [];
                                                                                                 var preserveWhitespace = options.preserveWhitespace !== false;
                                                                                                 var root;
                                                                                                 var currentParent;
                                                                                                 var inVPre = false;
                                                                                                 var inPre = false;
                                                                                                 var warned = false;
                                                                                                 
                                                                                                 function warnOnce (msg) {
                                                                                                 if (!warned) {
                                                                                                 warned = true;
                                                                                                 warn$2(msg);
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function endPre (element) {
                                                                                                 // check pre state
                                                                                                 if (element.pre) {
                                                                                                 inVPre = false;
                                                                                                 }
                                                                                                 if (platformIsPreTag(element.tag)) {
                                                                                                 inPre = false;
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 parseHTML(template, {
                                                                                                           warn: warn$2,
                                                                                                           expectHTML: options.expectHTML,
                                                                                                           isUnaryTag: options.isUnaryTag,
                                                                                                           canBeLeftOpenTag: options.canBeLeftOpenTag,
                                                                                                           shouldDecodeNewlines: options.shouldDecodeNewlines,
                                                                                                           start: function start (tag, attrs, unary) {
                                                                                                           // check namespace.
                                                                                                           // inherit parent ns if there is one
                                                                                                           var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
                                                                                                           
                                                                                                           // handle IE svg bug
                                                                                                           /* istanbul ignore if */
                                                                                                           if (isIE && ns === 'svg') {
                                                                                                           attrs = guardIESVGBug(attrs);
                                                                                                           }
                                                                                                           
                                                                                                           var element = {
                                                                                                           type: 1,
                                                                                                           tag: tag,
                                                                                                           attrsList: attrs,
                                                                                                           attrsMap: makeAttrsMap(attrs),
                                                                                                           parent: currentParent,
                                                                                                           children: []
                                                                                                           };
                                                                                                           if (ns) {
                                                                                                           element.ns = ns;
                                                                                                           }
                                                                                                           
                                                                                                           if (isForbiddenTag(element) && !isServerRendering()) {
                                                                                                           element.forbidden = true;
                                                                                                           "development" !== 'production' && warn$2(
                                                                                                                                                    'Templates should only be responsible for mapping the state to the ' +
                                                                                                                                                    'UI. Avoid placing tags with side-effects in your templates, such as ' +
                                                                                                                                                    "<" + tag + ">" + ', as they will not be parsed.'
                                                                                                                                                    );
                                                                                                           }
                                                                                                           
                                                                                                           // apply pre-transforms
                                                                                                           for (var i = 0; i < preTransforms.length; i++) {
                                                                                                           preTransforms[i](element, options);
                                                                                                           }
                                                                                                           
                                                                                                           if (!inVPre) {
                                                                                                           processPre(element);
                                                                                                           if (element.pre) {
                                                                                                           inVPre = true;
                                                                                                           }
                                                                                                           }
                                                                                                           if (platformIsPreTag(element.tag)) {
                                                                                                           inPre = true;
                                                                                                           }
                                                                                                           if (inVPre) {
                                                                                                           processRawAttrs(element);
                                                                                                           } else {
                                                                                                           processFor(element);
                                                                                                           processIf(element);
                                                                                                           processOnce(element);
                                                                                                           processKey(element);
                                                                                                           
                                                                                                           // determine whether this is a plain element after
                                                                                                           // removing structural attributes
                                                                                                           element.plain = !element.key && !attrs.length;
                                                                                                           
                                                                                                           processRef(element);
                                                                                                           processSlot(element);
                                                                                                           processComponent(element);
                                                                                                           for (var i$1 = 0; i$1 < transforms.length; i$1++) {
                                                                                                           transforms[i$1](element, options);
                                                                                                           }
                                                                                                           processAttrs(element);
                                                                                                           }
                                                                                                           
                                                                                                           function checkRootConstraints (el) {
                                                                                                           {
                                                                                                           if (el.tag === 'slot' || el.tag === 'template') {
                                                                                                           warnOnce(
                                                                                                                    "Cannot use <" + (el.tag) + "> as component root element because it may " +
                                                                                                                    'contain multiple nodes.'
                                                                                                                    );
                                                                                                           }
                                                                                                           if (el.attrsMap.hasOwnProperty('v-for')) {
                                                                                                           warnOnce(
                                                                                                                    'Cannot use v-for on stateful component root element because ' +
                                                                                                                    'it renders multiple elements.'
                                                                                                                    );
                                                                                                           }
                                                                                                           }
                                                                                                           }
                                                                                                           
                                                                                                           // tree management
                                                                                                           if (!root) {
                                                                                                           root = element;
                                                                                                           checkRootConstraints(root);
                                                                                                           } else if (!stack.length) {
                                                                                                           // allow root elements with v-if, v-else-if and v-else
                                                                                                           if (root.if && (element.elseif || element.else)) {
                                                                                                           checkRootConstraints(element);
                                                                                                           addIfCondition(root, {
                                                                                                                          exp: element.elseif,
                                                                                                                          block: element
                                                                                                                          });
                                                                                                           } else {
                                                                                                           warnOnce(
                                                                                                                    "Component template should contain exactly one root element. " +
                                                                                                                    "If you are using v-if on multiple elements, " +
                                                                                                                    "use v-else-if to chain them instead."
                                                                                                                    );
                                                                                                           }
                                                                                                           }
                                                                                                           if (currentParent && !element.forbidden) {
                                                                                                           if (element.elseif || element.else) {
                                                                                                           processIfConditions(element, currentParent);
                                                                                                           } else if (element.slotScope) { // scoped slot
                                                                                                           currentParent.plain = false;
                                                                                                           var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
                                                                                                           } else {
                                                                                                           currentParent.children.push(element);
                                                                                                           element.parent = currentParent;
                                                                                                           }
                                                                                                           }
                                                                                                           if (!unary) {
                                                                                                           currentParent = element;
                                                                                                           stack.push(element);
                                                                                                           } else {
                                                                                                           endPre(element);
                                                                                                           }
                                                                                                           // apply post-transforms
                                                                                                           for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
                                                                                                           postTransforms[i$2](element, options);
                                                                                                           }
                                                                                                           },
                                                                                                           
                                                                                                           end: function end () {
                                                                                                           // remove trailing whitespace
                                                                                                           var element = stack[stack.length - 1];
                                                                                                           var lastNode = element.children[element.children.length - 1];
                                                                                                           if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
                                                                                                           element.children.pop();
                                                                                                           }
                                                                                                           // pop stack
                                                                                                           stack.length -= 1;
                                                                                                           currentParent = stack[stack.length - 1];
                                                                                                           endPre(element);
                                                                                                           },
                                                                                                           
                                                                                                           chars: function chars (text) {
                                                                                                           if (!currentParent) {
                                                                                                           {
                                                                                                           if (text === template) {
                                                                                                           warnOnce(
                                                                                                                    'Component template requires a root element, rather than just text.'
                                                                                                                    );
                                                                                                           } else if ((text = text.trim())) {
                                                                                                           warnOnce(
                                                                                                                    ("text \"" + text + "\" outside root element will be ignored.")
                                                                                                                    );
                                                                                                           }
                                                                                                           }
                                                                                                           return
                                                                                                           }
                                                                                                           // IE textarea placeholder bug
                                                                                                           /* istanbul ignore if */
                                                                                                           if (isIE &&
                                                                                                               currentParent.tag === 'textarea' &&
                                                                                                               currentParent.attrsMap.placeholder === text) {
                                                                                                           return
                                                                                                           }
                                                                                                           var children = currentParent.children;
                                                                                                           text = inPre || text.trim()
                                                                                                           ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
                                                                                                           // only preserve whitespace if its not right after a starting tag
                                                                                                           : preserveWhitespace && children.length ? ' ' : '';
                                                                                                           if (text) {
                                                                                                           var expression;
                                                                                                           if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
                                                                                                           children.push({
                                                                                                                         type: 2,
                                                                                                                         expression: expression,
                                                                                                                         text: text
                                                                                                                         });
                                                                                                           } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
                                                                                                           children.push({
                                                                                                                         type: 3,
                                                                                                                         text: text
                                                                                                                         });
                                                                                                           }
                                                                                                           }
                                                                                                           }
                                                                                                           });
                                                                                                 return root
                                                                                                 }
                                                                                                 
                                                                                                 function processPre (el) {
                                                                                                 if (getAndRemoveAttr(el, 'v-pre') != null) {
                                                                                                 el.pre = true;
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function processRawAttrs (el) {
                                                                                                 var l = el.attrsList.length;
                                                                                                 if (l) {
                                                                                                 var attrs = el.attrs = new Array(l);
                                                                                                 for (var i = 0; i < l; i++) {
                                                                                                 attrs[i] = {
                                                                                                 name: el.attrsList[i].name,
                                                                                                 value: JSON.stringify(el.attrsList[i].value)
                                                                                                 };
                                                                                                 }
                                                                                                 } else if (!el.pre) {
                                                                                                 // non root node in pre blocks with no attributes
                                                                                                 el.plain = true;
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function processKey (el) {
                                                                                                 var exp = getBindingAttr(el, 'key');
                                                                                                 if (exp) {
                                                                                                 if ("development" !== 'production' && el.tag === 'template') {
                                                                                                 warn$2("<template> cannot be keyed. Place the key on real elements instead.");
                                                                                                 }
                                                                                                 el.key = exp;
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function processRef (el) {
                                                                                                 var ref = getBindingAttr(el, 'ref');
                                                                                                 if (ref) {
                                                                                                 el.ref = ref;
                                                                                                 el.refInFor = checkInFor(el);
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function processFor (el) {
                                                                                                 var exp;
                                                                                                 if ((exp = getAndRemoveAttr(el, 'v-for'))) {
                                                                                                 var inMatch = exp.match(forAliasRE);
                                                                                                 if (!inMatch) {
                                                                                                 "development" !== 'production' && warn$2(
                                                                                                                                          ("Invalid v-for expression: " + exp)
                                                                                                                                          );
                                                                                                 return
                                                                                                 }
                                                                                                 el.for = inMatch[2].trim();
                                                                                                 var alias = inMatch[1].trim();
                                                                                                 var iteratorMatch = alias.match(forIteratorRE);
                                                                                                 if (iteratorMatch) {
                                                                                                 el.alias = iteratorMatch[1].trim();
                                                                                                 el.iterator1 = iteratorMatch[2].trim();
                                                                                                 if (iteratorMatch[3]) {
                                                                                                 el.iterator2 = iteratorMatch[3].trim();
                                                                                                 }
                                                                                                 } else {
                                                                                                 el.alias = alias;
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function processIf (el) {
                                                                                                 var exp = getAndRemoveAttr(el, 'v-if');
                                                                                                 if (exp) {
                                                                                                 el.if = exp;
                                                                                                 addIfCondition(el, {
                                                                                                                exp: exp,
                                                                                                                block: el
                                                                                                                });
                                                                                                 } else {
                                                                                                 if (getAndRemoveAttr(el, 'v-else') != null) {
                                                                                                 el.else = true;
                                                                                                 }
                                                                                                 var elseif = getAndRemoveAttr(el, 'v-else-if');
                                                                                                 if (elseif) {
                                                                                                 el.elseif = elseif;
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function processIfConditions (el, parent) {
                                                                                                 var prev = findPrevElement(parent.children);
                                                                                                 if (prev && prev.if) {
                                                                                                 addIfCondition(prev, {
                                                                                                                exp: el.elseif,
                                                                                                                block: el
                                                                                                                });
                                                                                                 } else {
                                                                                                 warn$2(
                                                                                                        "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
                                                                                                        "used on element <" + (el.tag) + "> without corresponding v-if."
                                                                                                        );
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function findPrevElement (children) {
                                                                                                 var i = children.length;
                                                                                                 while (i--) {
                                                                                                 if (children[i].type === 1) {
                                                                                                 return children[i]
                                                                                                 } else {
                                                                                                 if ("development" !== 'production' && children[i].text !== ' ') {
                                                                                                 warn$2(
                                                                                                        "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
                                                                                                        "will be ignored."
                                                                                                        );
                                                                                                 }
                                                                                                 children.pop();
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function addIfCondition (el, condition) {
                                                                                                 if (!el.ifConditions) {
                                                                                                 el.ifConditions = [];
                                                                                                 }
                                                                                                 el.ifConditions.push(condition);
                                                                                                 }
                                                                                                 
                                                                                                 function processOnce (el) {
                                                                                                 var once$$1 = getAndRemoveAttr(el, 'v-once');
                                                                                                 if (once$$1 != null) {
                                                                                                 el.once = true;
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function processSlot (el) {
                                                                                                 if (el.tag === 'slot') {
                                                                                                 el.slotName = getBindingAttr(el, 'name');
                                                                                                 if ("development" !== 'production' && el.key) {
                                                                                                 warn$2(
                                                                                                        "`key` does not work on <slot> because slots are abstract outlets " +
                                                                                                        "and can possibly expand into multiple elements. " +
                                                                                                        "Use the key on a wrapping element instead."
                                                                                                        );
                                                                                                 }
                                                                                                 } else {
                                                                                                 var slotTarget = getBindingAttr(el, 'slot');
                                                                                                 if (slotTarget) {
                                                                                                 el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
                                                                                                 }
                                                                                                 if (el.tag === 'template') {
                                                                                                 el.slotScope = getAndRemoveAttr(el, 'scope');
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function processComponent (el) {
                                                                                                 var binding;
                                                                                                 if ((binding = getBindingAttr(el, 'is'))) {
                                                                                                 el.component = binding;
                                                                                                 }
                                                                                                 if (getAndRemoveAttr(el, 'inline-template') != null) {
                                                                                                 el.inlineTemplate = true;
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function processAttrs (el) {
                                                                                                 var list = el.attrsList;
                                                                                                 var i, l, name, rawName, value, modifiers, isProp;
                                                                                                 for (i = 0, l = list.length; i < l; i++) {
                                                                                                 name = rawName = list[i].name;
                                                                                                 value = list[i].value;
                                                                                                 if (dirRE.test(name)) {
                                                                                                 // mark element as dynamic
                                                                                                 el.hasBindings = true;
                                                                                                 // modifiers
                                                                                                 modifiers = parseModifiers(name);
                                                                                                 if (modifiers) {
                                                                                                 name = name.replace(modifierRE, '');
                                                                                                 }
                                                                                                 if (bindRE.test(name)) { // v-bind
                                                                                                 name = name.replace(bindRE, '');
                                                                                                 value = parseFilters(value);
                                                                                                 isProp = false;
                                                                                                 if (modifiers) {
                                                                                                 if (modifiers.prop) {
                                                                                                 isProp = true;
                                                                                                 name = camelize(name);
                                                                                                 if (name === 'innerHtml') { name = 'innerHTML'; }
                                                                                                 }
                                                                                                 if (modifiers.camel) {
                                                                                                 name = camelize(name);
                                                                                                 }
                                                                                                 if (modifiers.sync) {
                                                                                                 addHandler(
                                                                                                            el,
                                                                                                            ("update:" + (camelize(name))),
                                                                                                            genAssignmentCode(value, "$event")
                                                                                                            );
                                                                                                 }
                                                                                                 }
                                                                                                 if (isProp || platformMustUseProp(el.tag, el.attrsMap.type, name)) {
                                                                                                 addProp(el, name, value);
                                                                                                 } else {
                                                                                                 addAttr(el, name, value);
                                                                                                 }
                                                                                                 } else if (onRE.test(name)) { // v-on
                                                                                                 name = name.replace(onRE, '');
                                                                                                 addHandler(el, name, value, modifiers, false, warn$2);
                                                                                                 } else { // normal directives
                                                                                                 name = name.replace(dirRE, '');
                                                                                                 // parse arg
                                                                                                 var argMatch = name.match(argRE);
                                                                                                 var arg = argMatch && argMatch[1];
                                                                                                 if (arg) {
                                                                                                 name = name.slice(0, -(arg.length + 1));
                                                                                                 }
                                                                                                 addDirective(el, name, rawName, value, arg, modifiers);
                                                                                                 if ("development" !== 'production' && name === 'model') {
                                                                                                 checkForAliasModel(el, value);
                                                                                                 }
                                                                                                 }
                                                                                                 } else {
                                                                                                 // literal attribute
                                                                                                 {
                                                                                                 var expression = parseText(value, delimiters);
                                                                                                 if (expression) {
                                                                                                 warn$2(
                                                                                                        name + "=\"" + value + "\": " +
                                                                                                        'Interpolation inside attributes has been removed. ' +
                                                                                                        'Use v-bind or the colon shorthand instead. For example, ' +
                                                                                                        'instead of <div id="{{ val }}">, use <div :id="val">.'
                                                                                                        );
                                                                                                 }
                                                                                                 }
                                                                                                 addAttr(el, name, JSON.stringify(value));
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function checkInFor (el) {
                                                                                                 var parent = el;
                                                                                                 while (parent) {
                                                                                                 if (parent.for !== undefined) {
                                                                                                 return true
                                                                                                 }
                                                                                                 parent = parent.parent;
                                                                                                 }
                                                                                                 return false
                                                                                                 }
                                                                                                 
                                                                                                 function parseModifiers (name) {
                                                                                                 var match = name.match(modifierRE);
                                                                                                 if (match) {
                                                                                                 var ret = {};
                                                                                                 match.forEach(function (m) { ret[m.slice(1)] = true; });
                                                                                                 return ret
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function makeAttrsMap (attrs) {
                                                                                                 var map = {};
                                                                                                 for (var i = 0, l = attrs.length; i < l; i++) {
                                                                                                 if (
                                                                                                     "development" !== 'production' &&
                                                                                                     map[attrs[i].name] && !isIE && !isEdge
                                                                                                     ) {
                                                                                                 warn$2('duplicate attribute: ' + attrs[i].name);
                                                                                                 }
                                                                                                 map[attrs[i].name] = attrs[i].value;
                                                                                                 }
                                                                                                 return map
                                                                                                 }
                                                                                                 
                                                                                                 // for script (e.g. type="x/template") or style, do not decode content
                                                                                                 function isTextTag (el) {
                                                                                                 return el.tag === 'script' || el.tag === 'style'
                                                                                                 }
                                                                                                 
                                                                                                 function isForbiddenTag (el) {
                                                                                                 return (
                                                                                                         el.tag === 'style' ||
                                                                                                         (el.tag === 'script' && (
                                                                                                                                  !el.attrsMap.type ||
                                                                                                                                  el.attrsMap.type === 'text/javascript'
                                                                                                                                  ))
                                                                                                         )
                                                                                                 }
                                                                                                 
                                                                                                 var ieNSBug = /^xmlns:NS\d+/;
                                                                                                 var ieNSPrefix = /^NS\d+:/;
                                                                                                 
/* istanbul ignore next */
                                                                                                 function guardIESVGBug (attrs) {
                                                                                                 var res = [];
                                                                                                 for (var i = 0; i < attrs.length; i++) {
                                                                                                 var attr = attrs[i];
                                                                                                 if (!ieNSBug.test(attr.name)) {
                                                                                                 attr.name = attr.name.replace(ieNSPrefix, '');
                                                                                                 res.push(attr);
                                                                                                 }
                                                                                                 }
                                                                                                 return res
                                                                                                 }
                                                                                                 
                                                                                                 function checkForAliasModel (el, value) {
                                                                                                 var _el = el;
                                                                                                 while (_el) {
                                                                                                 if (_el.for && _el.alias === value) {
                                                                                                 warn$2(
                                                                                                        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
                                                                                                        "You are binding v-model directly to a v-for iteration alias. " +
                                                                                                        "This will not be able to modify the v-for source array because " +
                                                                                                        "writing to the alias is like modifying a function local variable. " +
                                                                                                        "Consider using an array of objects and use v-model on an object property instead."
                                                                                                        );
                                                                                                 }
                                                                                                 _el = _el.parent;
                                                                                                 }
                                                                                                 }
                                                                                                 
/*  */
                                                                                                 
                                                                                                 var isStaticKey;
                                                                                                 var isPlatformReservedTag;
                                                                                                 
                                                                                                 var genStaticKeysCached = cached(genStaticKeys$1);
                                                                                                 
/**
 * Goal of the optimizer: walk the generated template AST tree
 * and detect sub-trees that are purely static, i.e. parts of
 * the DOM that never needs to change.
 *
 * Once we detect these sub-trees, we can:
 *
 * 1. Hoist them into constants, so that we no longer need to
 *    create fresh nodes for them on each re-render;
 * 2. Completely skip them in the patching process.
 */
                                                                                                 function optimize (root, options) {
                                                                                                 if (!root) { return }
                                                                                                 isStaticKey = genStaticKeysCached(options.staticKeys || '');
                                                                                                 isPlatformReservedTag = options.isReservedTag || no;
                                                                                                 // first pass: mark all non-static nodes.
                                                                                                 markStatic$1(root);
                                                                                                 // second pass: mark static roots.
                                                                                                 markStaticRoots(root, false);
                                                                                                 }
                                                                                                 
                                                                                                 function genStaticKeys$1 (keys) {
                                                                                                 return makeMap(
                                                                                                                'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
                                                                                                                (keys ? ',' + keys : '')
                                                                                                                )
                                                                                                 }
                                                                                                 
                                                                                                 function markStatic$1 (node) {
                                                                                                 node.static = isStatic(node);
                                                                                                 if (node.type === 1) {
                                                                                                 // do not make component slot content static. this avoids
                                                                                                 // 1. components not able to mutate slot nodes
                                                                                                 // 2. static slot content fails for hot-reloading
                                                                                                 if (
                                                                                                     !isPlatformReservedTag(node.tag) &&
                                                                                                     node.tag !== 'slot' &&
                                                                                                     node.attrsMap['inline-template'] == null
                                                                                                     ) {
                                                                                                 return
                                                                                                 }
                                                                                                 for (var i = 0, l = node.children.length; i < l; i++) {
                                                                                                 var child = node.children[i];
                                                                                                 markStatic$1(child);
                                                                                                 if (!child.static) {
                                                                                                 node.static = false;
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function markStaticRoots (node, isInFor) {
                                                                                                 if (node.type === 1) {
                                                                                                 if (node.static || node.once) {
                                                                                                 node.staticInFor = isInFor;
                                                                                                 }
                                                                                                 // For a node to qualify as a static root, it should have children that
                                                                                                 // are not just static text. Otherwise the cost of hoisting out will
                                                                                                 // outweigh the benefits and it's better off to just always render it fresh.
                                                                                                 if (node.static && node.children.length && !(
                                                                                                                                              node.children.length === 1 &&
                                                                                                                                              node.children[0].type === 3
                                                                                                                                              )) {
                                                                                                 node.staticRoot = true;
                                                                                                 return
                                                                                                 } else {
                                                                                                 node.staticRoot = false;
                                                                                                 }
                                                                                                 if (node.children) {
                                                                                                 for (var i = 0, l = node.children.length; i < l; i++) {
                                                                                                 markStaticRoots(node.children[i], isInFor || !!node.for);
                                                                                                 }
                                                                                                 }
                                                                                                 if (node.ifConditions) {
                                                                                                 walkThroughConditionsBlocks(node.ifConditions, isInFor);
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function walkThroughConditionsBlocks (conditionBlocks, isInFor) {
                                                                                                 for (var i = 1, len = conditionBlocks.length; i < len; i++) {
                                                                                                 markStaticRoots(conditionBlocks[i].block, isInFor);
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function isStatic (node) {
                                                                                                 if (node.type === 2) { // expression
                                                                                                 return false
                                                                                                 }
                                                                                                 if (node.type === 3) { // text
                                                                                                 return true
                                                                                                 }
                                                                                                 return !!(node.pre || (
                                                                                                                        !node.hasBindings && // no dynamic bindings
                                                                                                                        !node.if && !node.for && // not v-if or v-for or v-else
                                                                                                                        !isBuiltInTag(node.tag) && // not a built-in
                                                                                                                        isPlatformReservedTag(node.tag) && // not a component
                                                                                                                        !isDirectChildOfTemplateFor(node) &&
                                                                                                                        Object.keys(node).every(isStaticKey)
                                                                                                                        ))
                                                                                                 }
                                                                                                 
                                                                                                 function isDirectChildOfTemplateFor (node) {
                                                                                                 while (node.parent) {
                                                                                                 node = node.parent;
                                                                                                 if (node.tag !== 'template') {
                                                                                                 return false
                                                                                                 }
                                                                                                 if (node.for) {
                                                                                                 return true
                                                                                                 }
                                                                                                 }
                                                                                                 return false
                                                                                                 }
                                                                                                 
/*  */
                                                                                                 
                                                                                                 var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
                                                                                                                                                            var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
                                                                                                                                                            
                                                                                                                                                            // keyCode aliases
                                                                                                                                                            var keyCodes = {
                                                                                                                                                            esc: 27,
                                                                                                                                                            tab: 9,
                                                                                                                                                            enter: 13,
                                                                                                                                                            space: 32,
                                                                                                                                                            up: 38,
                                                                                                                                                            left: 37,
                                                                                                                                                            right: 39,
                                                                                                                                                            down: 40,
                                                                                                                                                            'delete': [8, 46]
                                                                                                                                                            };
                                                                                                                                                            
                                                                                                                                                            // #4868: modifiers that prevent the execution of the listener
                                                                                                                                                            // need to explicitly return null so that we can determine whether to remove
                                                                                                                                                            // the listener for .once
                                                                                                                                                            var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
                                                                                                                                                            
                                                                                                                                                            var modifierCode = {
                                                                                                                                                            stop: '$event.stopPropagation();',
                                                                                                                                                            prevent: '$event.preventDefault();',
                                                                                                                                                            self: genGuard("$event.target !== $event.currentTarget"),
                                                                                                                                                            ctrl: genGuard("!$event.ctrlKey"),
                                                                                                                                                            shift: genGuard("!$event.shiftKey"),
                                                                                                                                                            alt: genGuard("!$event.altKey"),
                                                                                                                                                            meta: genGuard("!$event.metaKey"),
                                                                                                                                                            left: genGuard("'button' in $event && $event.button !== 0"),
                                                                                                                                                            middle: genGuard("'button' in $event && $event.button !== 1"),
                                                                                                                                                            right: genGuard("'button' in $event && $event.button !== 2")
                                                                                                                                                            };
                                                                                                                                                            
                                                                                                                                                            function genHandlers (
                                                                                                                                                                                  events,
                                                                                                                                                                                  native,
                                                                                                                                                                                  warn
                                                                                                                                                                                  ) {
                                                                                                                                                            var res = native ? 'nativeOn:{' : 'on:{';
                                                                                                                                                            for (var name in events) {
                                                                                                                                                            var handler = events[name];
                                                                                                                                                            // #5330: warn click.right, since right clicks do not actually fire click events.
                                                                                                                                                            if ("development" !== 'production' &&
                                                                                                                                                                name === 'click' &&
                                                                                                                                                                handler && handler.modifiers && handler.modifiers.right
                                                                                                                                                                ) {
                                                                                                                                                            warn(
                                                                                                                                                                 "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
                                                                                                                                                                 "do not actually fire \"click\" events."
                                                                                                                                                                 );
                                                                                                                                                            }
                                                                                                                                                            res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
                                                                                                                                                            }
                                                                                                                                                            return res.slice(0, -1) + '}'
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genHandler (
                                                                                                                                                                                 name,
                                                                                                                                                                                 handler
                                                                                                                                                                                 ) {
                                                                                                                                                            if (!handler) {
                                                                                                                                                            return 'function(){}'
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            if (Array.isArray(handler)) {
                                                                                                                                                            return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            var isMethodPath = simplePathRE.test(handler.value);
                                                                                                                                                            var isFunctionExpression = fnExpRE.test(handler.value);
                                                                                                                                                            
                                                                                                                                                            if (!handler.modifiers) {
                                                                                                                                                            return isMethodPath || isFunctionExpression
                                                                                                                                                            ? handler.value
                                                                                                                                                            : ("function($event){" + (handler.value) + "}") // inline statement
                                                                                                                                                            } else {
                                                                                                                                                            var code = '';
                                                                                                                                                            var genModifierCode = '';
                                                                                                                                                            var keys = [];
                                                                                                                                                            for (var key in handler.modifiers) {
                                                                                                                                                            if (modifierCode[key]) {
                                                                                                                                                            genModifierCode += modifierCode[key];
                                                                                                                                                            // left/right
                                                                                                                                                            if (keyCodes[key]) {
                                                                                                                                                            keys.push(key);
                                                                                                                                                            }
                                                                                                                                                            } else {
                                                                                                                                                            keys.push(key);
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            if (keys.length) {
                                                                                                                                                            code += genKeyFilter(keys);
                                                                                                                                                            }
                                                                                                                                                            // Make sure modifiers like prevent and stop get executed after key filtering
                                                                                                                                                            if (genModifierCode) {
                                                                                                                                                            code += genModifierCode;
                                                                                                                                                            }
                                                                                                                                                            var handlerCode = isMethodPath
                                                                                                                                                            ? handler.value + '($event)'
                                                                                                                                                            : isFunctionExpression
                                                                                                                                                            ? ("(" + (handler.value) + ")($event)")
                                                                                                                                                            : handler.value;
                                                                                                                                                            return ("function($event){" + code + handlerCode + "}")
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genKeyFilter (keys) {
                                                                                                                                                            return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genFilterCode (key) {
                                                                                                                                                            var keyVal = parseInt(key, 10);
                                                                                                                                                            if (keyVal) {
                                                                                                                                                            return ("$event.keyCode!==" + keyVal)
                                                                                                                                                            }
                                                                                                                                                            var alias = keyCodes[key];
                                                                                                                                                            return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
                                                                                                                                                            }
                                                                                                                                                            
/*  */
                                                                                                                                                            
                                                                                                                                                            function bind$1 (el, dir) {
                                                                                                                                                            el.wrapData = function (code) {
                                                                                                                                                            return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + (dir.modifiers && dir.modifiers.prop ? ',true' : '') + ")")
                                                                                                                                                            };
                                                                                                                                                            }
                                                                                                                                                            
/*  */
                                                                                                                                                            
                                                                                                                                                            var baseDirectives = {
                                                                                                                                                            bind: bind$1,
                                                                                                                                                            cloak: noop
                                                                                                                                                            };
                                                                                                                                                            
/*  */
                                                                                                                                                            
                                                                                                                                                            // configurable state
                                                                                                                                                            var warn$3;
                                                                                                                                                            var transforms$1;
                                                                                                                                                            var dataGenFns;
                                                                                                                                                            var platformDirectives$1;
                                                                                                                                                            var isPlatformReservedTag$1;
                                                                                                                                                            var staticRenderFns;
                                                                                                                                                            var onceCount;
                                                                                                                                                            var currentOptions;
                                                                                                                                                            
                                                                                                                                                            function generate (
                                                                                                                                                                               ast,
                                                                                                                                                                               options
                                                                                                                                                                               ) {
                                                                                                                                                            // save previous staticRenderFns so generate calls can be nested
                                                                                                                                                            var prevStaticRenderFns = staticRenderFns;
                                                                                                                                                            var currentStaticRenderFns = staticRenderFns = [];
                                                                                                                                                            var prevOnceCount = onceCount;
                                                                                                                                                            onceCount = 0;
                                                                                                                                                            currentOptions = options;
                                                                                                                                                            warn$3 = options.warn || baseWarn;
                                                                                                                                                            transforms$1 = pluckModuleFunction(options.modules, 'transformCode');
                                                                                                                                                            dataGenFns = pluckModuleFunction(options.modules, 'genData');
                                                                                                                                                            platformDirectives$1 = options.directives || {};
                                                                                                                                                            isPlatformReservedTag$1 = options.isReservedTag || no;
                                                                                                                                                            var code = ast ? genElement(ast) : '_c("div")';
                                                                                                                                                            staticRenderFns = prevStaticRenderFns;
                                                                                                                                                            onceCount = prevOnceCount;
                                                                                                                                                            return {
                                                                                                                                                            render: ("with(this){return " + code + "}"),
                                                                                                                                                            staticRenderFns: currentStaticRenderFns
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genElement (el) {
                                                                                                                                                            if (el.staticRoot && !el.staticProcessed) {
                                                                                                                                                            return genStatic(el)
                                                                                                                                                            } else if (el.once && !el.onceProcessed) {
                                                                                                                                                            return genOnce(el)
                                                                                                                                                            } else if (el.for && !el.forProcessed) {
                                                                                                                                                            return genFor(el)
                                                                                                                                                            } else if (el.if && !el.ifProcessed) {
                                                                                                                                                            return genIf(el)
                                                                                                                                                            } else if (el.tag === 'template' && !el.slotTarget) {
                                                                                                                                                            return genChildren(el) || 'void 0'
                                                                                                                                                            } else if (el.tag === 'slot') {
                                                                                                                                                            return genSlot(el)
                                                                                                                                                            } else {
                                                                                                                                                            // component or element
                                                                                                                                                            var code;
                                                                                                                                                            if (el.component) {
                                                                                                                                                            code = genComponent(el.component, el);
                                                                                                                                                            } else {
                                                                                                                                                            var data = el.plain ? undefined : genData(el);
                                                                                                                                                            
                                                                                                                                                            var children = el.inlineTemplate ? null : genChildren(el, true);
                                                                                                                                                            code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
                                                                                                                                                            }
                                                                                                                                                            // module transforms
                                                                                                                                                            for (var i = 0; i < transforms$1.length; i++) {
                                                                                                                                                            code = transforms$1[i](el, code);
                                                                                                                                                            }
                                                                                                                                                            return code
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            // hoist static sub-trees out
                                                                                                                                                            function genStatic (el) {
                                                                                                                                                            el.staticProcessed = true;
                                                                                                                                                            staticRenderFns.push(("with(this){return " + (genElement(el)) + "}"));
                                                                                                                                                            return ("_m(" + (staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            // v-once
                                                                                                                                                            function genOnce (el) {
                                                                                                                                                            el.onceProcessed = true;
                                                                                                                                                            if (el.if && !el.ifProcessed) {
                                                                                                                                                            return genIf(el)
                                                                                                                                                            } else if (el.staticInFor) {
                                                                                                                                                            var key = '';
                                                                                                                                                            var parent = el.parent;
                                                                                                                                                            while (parent) {
                                                                                                                                                            if (parent.for) {
                                                                                                                                                            key = parent.key;
                                                                                                                                                            break
                                                                                                                                                            }
                                                                                                                                                            parent = parent.parent;
                                                                                                                                                            }
                                                                                                                                                            if (!key) {
                                                                                                                                                            "development" !== 'production' && warn$3(
                                                                                                                                                                                                     "v-once can only be used inside v-for that is keyed. "
                                                                                                                                                                                                     );
                                                                                                                                                            return genElement(el)
                                                                                                                                                            }
                                                                                                                                                            return ("_o(" + (genElement(el)) + "," + (onceCount++) + (key ? ("," + key) : "") + ")")
                                                                                                                                                            } else {
                                                                                                                                                            return genStatic(el)
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genIf (el) {
                                                                                                                                                            el.ifProcessed = true; // avoid recursion
                                                                                                                                                            return genIfConditions(el.ifConditions.slice())
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genIfConditions (conditions) {
                                                                                                                                                            if (!conditions.length) {
                                                                                                                                                            return '_e()'
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            var condition = conditions.shift();
                                                                                                                                                            if (condition.exp) {
                                                                                                                                                            return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions)))
                                                                                                                                                            } else {
                                                                                                                                                            return ("" + (genTernaryExp(condition.block)))
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            // v-if with v-once should generate code like (a)?_m(0):_m(1)
                                                                                                                                                            function genTernaryExp (el) {
                                                                                                                                                            return el.once ? genOnce(el) : genElement(el)
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genFor (el) {
                                                                                                                                                            var exp = el.for;
                                                                                                                                                            var alias = el.alias;
                                                                                                                                                            var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
                                                                                                                                                            var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
                                                                                                                                                            
                                                                                                                                                            if (
                                                                                                                                                                "development" !== 'production' &&
                                                                                                                                                                maybeComponent(el) && el.tag !== 'slot' && el.tag !== 'template' && !el.key
                                                                                                                                                                ) {
                                                                                                                                                            warn$3(
                                                                                                                                                                   "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
                                                                                                                                                                   "v-for should have explicit keys. " +
                                                                                                                                                                   "See https://vuejs.org/guide/list.html#key for more info.",
                                                                                                                                                                   true /* tip */
                                                                                                                                                                   );
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            el.forProcessed = true; // avoid recursion
                                                                                                                                                            return "_l((" + exp + ")," +
                                                                                                                                                            "function(" + alias + iterator1 + iterator2 + "){" +
                                                                                                                                                            "return " + (genElement(el)) +
                                                                                                                                                            '})'
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genData (el) {
                                                                                                                                                            var data = '{';
                                                                                                                                                            
                                                                                                                                                            // directives first.
                                                                                                                                                            // directives may mutate the el's other properties before they are generated.
                                                                                                                                                            var dirs = genDirectives(el);
                                                                                                                                                            if (dirs) { data += dirs + ','; }
                                                                                                                                                            
                                                                                                                                                            // key
                                                                                                                                                            if (el.key) {
                                                                                                                                                            data += "key:" + (el.key) + ",";
                                                                                                                                                            }
                                                                                                                                                            // ref
                                                                                                                                                            if (el.ref) {
                                                                                                                                                            data += "ref:" + (el.ref) + ",";
                                                                                                                                                            }
                                                                                                                                                            if (el.refInFor) {
                                                                                                                                                            data += "refInFor:true,";
                                                                                                                                                            }
                                                                                                                                                            // pre
                                                                                                                                                            if (el.pre) {
                                                                                                                                                            data += "pre:true,";
                                                                                                                                                            }
                                                                                                                                                            // record original tag name for components using "is" attribute
                                                                                                                                                            if (el.component) {
                                                                                                                                                            data += "tag:\"" + (el.tag) + "\",";
                                                                                                                                                            }
                                                                                                                                                            // module data generation functions
                                                                                                                                                            for (var i = 0; i < dataGenFns.length; i++) {
                                                                                                                                                            data += dataGenFns[i](el);
                                                                                                                                                            }
                                                                                                                                                            // attributes
                                                                                                                                                            if (el.attrs) {
                                                                                                                                                            data += "attrs:{" + (genProps(el.attrs)) + "},";
                                                                                                                                                            }
                                                                                                                                                            // DOM props
                                                                                                                                                            if (el.props) {
                                                                                                                                                            data += "domProps:{" + (genProps(el.props)) + "},";
                                                                                                                                                            }
                                                                                                                                                            // event handlers
                                                                                                                                                            if (el.events) {
                                                                                                                                                            data += (genHandlers(el.events, false, warn$3)) + ",";
                                                                                                                                                            }
                                                                                                                                                            if (el.nativeEvents) {
                                                                                                                                                            data += (genHandlers(el.nativeEvents, true, warn$3)) + ",";
                                                                                                                                                            }
                                                                                                                                                            // slot target
                                                                                                                                                            if (el.slotTarget) {
                                                                                                                                                            data += "slot:" + (el.slotTarget) + ",";
                                                                                                                                                            }
                                                                                                                                                            // scoped slots
                                                                                                                                                            if (el.scopedSlots) {
                                                                                                                                                            data += (genScopedSlots(el.scopedSlots)) + ",";
                                                                                                                                                            }
                                                                                                                                                            // component v-model
                                                                                                                                                            if (el.model) {
                                                                                                                                                            data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
                                                                                                                                                            }
                                                                                                                                                            // inline-template
                                                                                                                                                            if (el.inlineTemplate) {
                                                                                                                                                            var inlineTemplate = genInlineTemplate(el);
                                                                                                                                                            if (inlineTemplate) {
                                                                                                                                                            data += inlineTemplate + ",";
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            data = data.replace(/,$/, '') + '}';
                                                                                                                                                            // v-bind data wrap
                                                                                                                                                            if (el.wrapData) {
                                                                                                                                                            data = el.wrapData(data);
                                                                                                                                                            }
                                                                                                                                                            return data
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genDirectives (el) {
                                                                                                                                                            var dirs = el.directives;
                                                                                                                                                            if (!dirs) { return }
                                                                                                                                                            var res = 'directives:[';
                                                                                                                                                            var hasRuntime = false;
                                                                                                                                                            var i, l, dir, needRuntime;
                                                                                                                                                            for (i = 0, l = dirs.length; i < l; i++) {
                                                                                                                                                            dir = dirs[i];
                                                                                                                                                            needRuntime = true;
                                                                                                                                                            var gen = platformDirectives$1[dir.name] || baseDirectives[dir.name];
                                                                                                                                                            if (gen) {
                                                                                                                                                            // compile-time directive that manipulates AST.
                                                                                                                                                            // returns true if it also needs a runtime counterpart.
                                                                                                                                                            needRuntime = !!gen(el, dir, warn$3);
                                                                                                                                                            }
                                                                                                                                                            if (needRuntime) {
                                                                                                                                                            hasRuntime = true;
                                                                                                                                                            res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            if (hasRuntime) {
                                                                                                                                                            return res.slice(0, -1) + ']'
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genInlineTemplate (el) {
                                                                                                                                                            var ast = el.children[0];
                                                                                                                                                            if ("development" !== 'production' && (
                                                                                                                                                                                                   el.children.length > 1 || ast.type !== 1
                                                                                                                                                                                                   )) {
                                                                                                                                                            warn$3('Inline-template components must have exactly one child element.');
                                                                                                                                                            }
                                                                                                                                                            if (ast.type === 1) {
                                                                                                                                                            var inlineRenderFns = generate(ast, currentOptions);
                                                                                                                                                            return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genScopedSlots (slots) {
                                                                                                                                                            return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) { return genScopedSlot(key, slots[key]); }).join(',')) + "])")
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genScopedSlot (key, el) {
                                                                                                                                                            return "[" + key + ",function(" + (String(el.attrsMap.scope)) + "){" +
                                                                                                                                                            "return " + (el.tag === 'template'
                                                                                                                                                                         ? genChildren(el) || 'void 0'
                                                                                                                                                                         : genElement(el)) + "}]"
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genChildren (el, checkSkip) {
                                                                                                                                                            var children = el.children;
                                                                                                                                                            if (children.length) {
                                                                                                                                                            var el$1 = children[0];
                                                                                                                                                            // optimize single v-for
                                                                                                                                                            if (children.length === 1 &&
                                                                                                                                                                el$1.for &&
                                                                                                                                                                el$1.tag !== 'template' &&
                                                                                                                                                                el$1.tag !== 'slot') {
                                                                                                                                                            return genElement(el$1)
                                                                                                                                                            }
                                                                                                                                                            var normalizationType = checkSkip ? getNormalizationType(children) : 0;
                                                                                                                                                            return ("[" + (children.map(genNode).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            // determine the normalization needed for the children array.
                                                                                                                                                            // 0: no normalization needed
                                                                                                                                                            // 1: simple normalization needed (possible 1-level deep nested array)
                                                                                                                                                            // 2: full normalization needed
                                                                                                                                                            function getNormalizationType (children) {
                                                                                                                                                            var res = 0;
                                                                                                                                                            for (var i = 0; i < children.length; i++) {
                                                                                                                                                            var el = children[i];
                                                                                                                                                            if (el.type !== 1) {
                                                                                                                                                            continue
                                                                                                                                                            }
                                                                                                                                                            if (needsNormalization(el) ||
                                                                                                                                                                (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
                                                                                                                                                            res = 2;
                                                                                                                                                            break
                                                                                                                                                            }
                                                                                                                                                            if (maybeComponent(el) ||
                                                                                                                                                                (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
                                                                                                                                                            res = 1;
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            return res
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function needsNormalization (el) {
                                                                                                                                                            return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function maybeComponent (el) {
                                                                                                                                                            return !isPlatformReservedTag$1(el.tag)
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genNode (node) {
                                                                                                                                                            if (node.type === 1) {
                                                                                                                                                            return genElement(node)
                                                                                                                                                            } else {
                                                                                                                                                            return genText(node)
                                                                                                                                                            }
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genText (text) {
                                                                                                                                                            return ("_v(" + (text.type === 2
                                                                                                                                                                             ? text.expression // no need for () because already wrapped in _s()
                                                                                                                                                                             : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genSlot (el) {
                                                                                                                                                            var slotName = el.slotName || '"default"';
                                                                                                                                                            var children = genChildren(el);
                                                                                                                                                            var res = "_t(" + slotName + (children ? ("," + children) : '');
                                                                                                                                                            var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
                                                                                                                                                            var bind$$1 = el.attrsMap['v-bind'];
                                                                                                                                                            if ((attrs || bind$$1) && !children) {
                                                                                                                                                            res += ",null";
                                                                                                                                                            }
                                                                                                                                                            if (attrs) {
                                                                                                                                                            res += "," + attrs;
                                                                                                                                                            }
                                                                                                                                                            if (bind$$1) {
                                                                                                                                                            res += (attrs ? '' : ',null') + "," + bind$$1;
                                                                                                                                                            }
                                                                                                                                                            return res + ')'
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            // componentName is el.component, take it as argument to shun flow's pessimistic refinement
                                                                                                                                                            function genComponent (componentName, el) {
                                                                                                                                                            var children = el.inlineTemplate ? null : genChildren(el, true);
                                                                                                                                                            return ("_c(" + componentName + "," + (genData(el)) + (children ? ("," + children) : '') + ")")
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            function genProps (props) {
                                                                                                                                                            var res = '';
                                                                                                                                                            for (var i = 0; i < props.length; i++) {
                                                                                                                                                            var prop = props[i];
                                                                                                                                                            res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
                                                                                                                                                            }
                                                                                                                                                            return res.slice(0, -1)
                                                                                                                                                            }
                                                                                                                                                            
                                                                                                                                                            // #3895, #4268
                                                                                                                                                            function transformSpecialNewlines (text) {
                                                                                                                                                            return text
                                                                                                                                                            .replace(/\u2028/g, '\\u2028')
                                                                                                                                                            .replace(/\u2029/g, '\\u2029')
                                                                                                                                                            }
                                                                                                                                                            
/*  */
                                                                                                                                                            
                                                                                                                                                            // these keywords should not appear inside expressions, but operators like
                                                                                                                                                            // typeof, instanceof and in are allowed
                                                                                                                                                            var prohibitedKeywordRE = new RegExp('\\b' + (
                                                                                                                                                                                                          'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
                                                                                                                                                                                                          'super,throw,while,yield,delete,export,import,return,switch,default,' +
                                                                                                                                                                                                          'extends,finally,continue,debugger,function,arguments'
                                                                                                                                                                                                          ).split(',').join('\\b|\\b') + '\\b');
                                                                                                                                                            
                                                                                                                                                            // these unary operators should not be used as property/method names
                                                                                                                                                            var unaryOperatorsRE = new RegExp('\\b' + (
                                                                                                                                                                                                       'delete,typeof,void'
                                                                                                                                                                                                       ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
                                                                                                                                                            
                                                                                                                                                            // check valid identifier for v-for
                                                                                                                                                            var identRE = /[A-Za-z_$][\w$]*/;
                                                                                                                                                            
                                                                                                                                                            // strip strings in expressions
                                                                                                                                                            var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
                                                                                                 
                                                                                                 // detect problematic expressions in a template
                                                                                                 function detectErrors (ast) {
                                                                                                 var errors = [];
                                                                                                 if (ast) {
                                                                                                 checkNode(ast, errors);
                                                                                                 }
                                                                                                 return errors
                                                                                                 }
                                                                                                 
                                                                                                 function checkNode (node, errors) {
                                                                                                 if (node.type === 1) {
                                                                                                 for (var name in node.attrsMap) {
                                                                                                 if (dirRE.test(name)) {
                                                                                                 var value = node.attrsMap[name];
                                                                                                 if (value) {
                                                                                                 if (name === 'v-for') {
                                                                                                 checkFor(node, ("v-for=\"" + value + "\""), errors);
                                                                                                 } else if (onRE.test(name)) {
                                                                                                 checkEvent(value, (name + "=\"" + value + "\""), errors);
                                                                                                 } else {
                                                                                                 checkExpression(value, (name + "=\"" + value + "\""), errors);
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 if (node.children) {
                                                                                                 for (var i = 0; i < node.children.length; i++) {
                                                                                                 checkNode(node.children[i], errors);
                                                                                                 }
                                                                                                 }
                                                                                                 } else if (node.type === 2) {
                                                                                                 checkExpression(node.expression, node.text, errors);
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function checkEvent (exp, text, errors) {
                                                                                                 var stipped = exp.replace(stripStringRE, '');
                                                                                                 var keywordMatch = stipped.match(unaryOperatorsRE);
                                                                                                 if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
                                                                                                 errors.push(
                                                                                                             "avoid using JavaScript unary operator as property name: " +
                                                                                                             "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
                                                                                                             );
                                                                                                 }
                                                                                                 checkExpression(exp, text, errors);
                                                                                                 }
                                                                                                 
                                                                                                 function checkFor (node, text, errors) {
                                                                                                 checkExpression(node.for || '', text, errors);
                                                                                                 checkIdentifier(node.alias, 'v-for alias', text, errors);
                                                                                                 checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
                                                                                                 checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
                                                                                                 }
                                                                                                 
                                                                                                 function checkIdentifier (ident, type, text, errors) {
                                                                                                 if (typeof ident === 'string' && !identRE.test(ident)) {
                                                                                                 errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function checkExpression (exp, text, errors) {
                                                                                                 try {
                                                                                                 new Function(("return " + exp));
                                                                                                 } catch (e) {
                                                                                                 var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
                                                                                                 if (keywordMatch) {
                                                                                                 errors.push(
                                                                                                             "avoid using JavaScript keyword as property name: " +
                                                                                                             "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
                                                                                                             );
                                                                                                 } else {
                                                                                                 errors.push(("invalid expression: " + (text.trim())));
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
/*  */
                                                                                                 
                                                                                                 function baseCompile (
                                                                                                                       template,
                                                                                                                       options
                                                                                                                       ) {
                                                                                                 var ast = parse(template.trim(), options);
                                                                                                 optimize(ast, options);
                                                                                                 var code = generate(ast, options);
                                                                                                 return {
                                                                                                 ast: ast,
                                                                                                 render: code.render,
                                                                                                 staticRenderFns: code.staticRenderFns
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function makeFunction (code, errors) {
                                                                                                 try {
                                                                                                 return new Function(code)
                                                                                                 } catch (err) {
                                                                                                 errors.push({ err: err, code: code });
                                                                                                 return noop
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function createCompiler (baseOptions) {
                                                                                                 var functionCompileCache = Object.create(null);
                                                                                                 
                                                                                                 function compile (
                                                                                                                   template,
                                                                                                                   options
                                                                                                                   ) {
                                                                                                 var finalOptions = Object.create(baseOptions);
                                                                                                 var errors = [];
                                                                                                 var tips = [];
                                                                                                 finalOptions.warn = function (msg, tip$$1) {
                                                                                                 (tip$$1 ? tips : errors).push(msg);
                                                                                                 };
                                                                                                 
                                                                                                 if (options) {
                                                                                                 // merge custom modules
                                                                                                 if (options.modules) {
                                                                                                 finalOptions.modules = (baseOptions.modules || []).concat(options.modules);
                                                                                                 }
                                                                                                 // merge custom directives
                                                                                                 if (options.directives) {
                                                                                                 finalOptions.directives = extend(
                                                                                                                                  Object.create(baseOptions.directives),
                                                                                                                                  options.directives
                                                                                                                                  );
                                                                                                 }
                                                                                                 // copy other options
                                                                                                 for (var key in options) {
                                                                                                 if (key !== 'modules' && key !== 'directives') {
                                                                                                 finalOptions[key] = options[key];
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 var compiled = baseCompile(template, finalOptions);
                                                                                                 {
                                                                                                 errors.push.apply(errors, detectErrors(compiled.ast));
                                                                                                 }
                                                                                                 compiled.errors = errors;
                                                                                                 compiled.tips = tips;
                                                                                                 return compiled
                                                                                                 }
                                                                                                 
                                                                                                 function compileToFunctions (
                                                                                                                              template,
                                                                                                                              options,
                                                                                                                              vm
                                                                                                                              ) {
                                                                                                 options = options || {};
                                                                                                 
                                                                                                 /* istanbul ignore if */
                                                                                                 {
                                                                                                 // detect possible CSP restriction
                                                                                                 try {
                                                                                                 new Function('return 1');
                                                                                                 } catch (e) {
                                                                                                 if (e.toString().match(/unsafe-eval|CSP/)) {
                                                                                                 warn(
                                                                                                      'It seems you are using the standalone build of Vue.js in an ' +
                                                                                                      'environment with Content Security Policy that prohibits unsafe-eval. ' +
                                                                                                      'The template compiler cannot work in this environment. Consider ' +
                                                                                                      'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
                                                                                                      'templates into render functions.'
                                                                                                      );
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 // check cache
                                                                                                 var key = options.delimiters
                                                                                                 ? String(options.delimiters) + template
                                                                                                 : template;
                                                                                                 if (functionCompileCache[key]) {
                                                                                                 return functionCompileCache[key]
                                                                                                 }
                                                                                                 
                                                                                                 // compile
                                                                                                 var compiled = compile(template, options);
                                                                                                 
                                                                                                 // check compilation errors/tips
                                                                                                 {
                                                                                                 if (compiled.errors && compiled.errors.length) {
                                                                                                 warn(
                                                                                                      "Error compiling template:\n\n" + template + "\n\n" +
                                                                                                      compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
                                                                                                      vm
                                                                                                      );
                                                                                                 }
                                                                                                 if (compiled.tips && compiled.tips.length) {
                                                                                                 compiled.tips.forEach(function (msg) { return tip(msg, vm); });
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 // turn code into functions
                                                                                                 var res = {};
                                                                                                 var fnGenErrors = [];
                                                                                                 res.render = makeFunction(compiled.render, fnGenErrors);
                                                                                                 var l = compiled.staticRenderFns.length;
                                                                                                 res.staticRenderFns = new Array(l);
                                                                                                 for (var i = 0; i < l; i++) {
                                                                                                 res.staticRenderFns[i] = makeFunction(compiled.staticRenderFns[i], fnGenErrors);
                                                                                                 }
                                                                                                 
                                                                                                 // check function generation errors.
                                                                                                 // this should only happen if there is a bug in the compiler itself.
                                                                                                 // mostly for codegen development use
                                                                                                 /* istanbul ignore if */
                                                                                                 {
                                                                                                 if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
                                                                                                 warn(
                                                                                                      "Failed to generate render function:\n\n" +
                                                                                                      fnGenErrors.map(function (ref) {
                                                                                                                      var err = ref.err;
                                                                                                                      var code = ref.code;
                                                                                                                      
                                                                                                                      return ((err.toString()) + " in\n\n" + code + "\n");
                                                                                                                      }).join('\n'),
                                                                                                      vm
                                                                                                      );
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 return (functionCompileCache[key] = res)
                                                                                                 }
                                                                                                 
                                                                                                 return {
                                                                                                 compile: compile,
                                                                                                 compileToFunctions: compileToFunctions
                                                                                                 }
                                                                                                 }
                                                                                                 
/*  */
                                                                                                 
                                                                                                 function transformNode (el, options) {
                                                                                                 var warn = options.warn || baseWarn;
                                                                                                 var staticClass = getAndRemoveAttr(el, 'class');
                                                                                                 if ("development" !== 'production' && staticClass) {
                                                                                                 var expression = parseText(staticClass, options.delimiters);
                                                                                                 if (expression) {
                                                                                                 warn(
                                                                                                      "class=\"" + staticClass + "\": " +
                                                                                                      'Interpolation inside attributes has been removed. ' +
                                                                                                      'Use v-bind or the colon shorthand instead. For example, ' +
                                                                                                      'instead of <div class="{{ val }}">, use <div :class="val">.'
                                                                                                      );
                                                                                                 }
                                                                                                 }
                                                                                                 if (staticClass) {
                                                                                                 el.staticClass = JSON.stringify(staticClass);
                                                                                                 }
                                                                                                 var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
                                                                                                 if (classBinding) {
                                                                                                 el.classBinding = classBinding;
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function genData$1 (el) {
                                                                                                 var data = '';
                                                                                                 if (el.staticClass) {
                                                                                                 data += "staticClass:" + (el.staticClass) + ",";
                                                                                                 }
                                                                                                 if (el.classBinding) {
                                                                                                 data += "class:" + (el.classBinding) + ",";
                                                                                                 }
                                                                                                 return data
                                                                                                 }
                                                                                                 
                                                                                                 var klass$1 = {
                                                                                                 staticKeys: ['staticClass'],
                                                                                                 transformNode: transformNode,
                                                                                                 genData: genData$1
                                                                                                 };
                                                                                                 
/*  */
                                                                                                 
                                                                                                 function transformNode$1 (el, options) {
                                                                                                 var warn = options.warn || baseWarn;
                                                                                                 var staticStyle = getAndRemoveAttr(el, 'style');
                                                                                                 if (staticStyle) {
                                                                                                 /* istanbul ignore if */
                                                                                                 {
                                                                                                 var expression = parseText(staticStyle, options.delimiters);
                                                                                                 if (expression) {
                                                                                                 warn(
                                                                                                      "style=\"" + staticStyle + "\": " +
                                                                                                      'Interpolation inside attributes has been removed. ' +
                                                                                                      'Use v-bind or the colon shorthand instead. For example, ' +
                                                                                                      'instead of <div style="{{ val }}">, use <div :style="val">.'
                                                                                                      );
                                                                                                 }
                                                                                                 }
                                                                                                 el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
                                                                                                 }
                                                                                                 
                                                                                                 var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
                                                                                                 if (styleBinding) {
                                                                                                 el.styleBinding = styleBinding;
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 function genData$2 (el) {
                                                                                                 var data = '';
                                                                                                 if (el.staticStyle) {
                                                                                                 data += "staticStyle:" + (el.staticStyle) + ",";
                                                                                                 }
                                                                                                 if (el.styleBinding) {
                                                                                                 data += "style:(" + (el.styleBinding) + "),";
                                                                                                 }
                                                                                                 return data
                                                                                                 }
                                                                                                 
                                                                                                 var style$1 = {
                                                                                                 staticKeys: ['staticStyle'],
                                                                                                 transformNode: transformNode$1,
                                                                                                 genData: genData$2
                                                                                                 };
                                                                                                 
                                                                                                 var modules$1 = [
                                                                                                                  klass$1,
                                                                                                                  style$1
                                                                                                                  ];
                                                                                                 
/*  */
                                                                                                 
                                                                                                 function text (el, dir) {
                                                                                                 if (dir.value) {
                                                                                                 addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
                                                                                                 }
                                                                                                 }
                                                                                                 
/*  */
                                                                                                 
                                                                                                 function html (el, dir) {
                                                                                                 if (dir.value) {
                                                                                                 addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 var directives$1 = {
                                                                                                 model: model,
                                                                                                 text: text,
                                                                                                 html: html
                                                                                                 };
                                                                                                 
/*  */
                                                                                                 
                                                                                                 var baseOptions = {
                                                                                                 expectHTML: true,
                                                                                                 modules: modules$1,
                                                                                                 directives: directives$1,
                                                                                                 isPreTag: isPreTag,
                                                                                                 isUnaryTag: isUnaryTag,
                                                                                                 mustUseProp: mustUseProp,
                                                                                                 canBeLeftOpenTag: canBeLeftOpenTag,
                                                                                                 isReservedTag: isReservedTag,
                                                                                                 getTagNamespace: getTagNamespace,
                                                                                                 staticKeys: genStaticKeys(modules$1)
                                                                                                 };
                                                                                                 
                                                                                                 var ref$1 = createCompiler(baseOptions);
                                                                                                 var compileToFunctions = ref$1.compileToFunctions;
                                                                                                 
/*  */
                                                                                                 
                                                                                                 var idToTemplate = cached(function (id) {
                                                                                                                           var el = query(id);
                                                                                                                           return el && el.innerHTML
                                                                                                                           });
                                                                                                 
                                                                                                 var mount = Vue$3.prototype.$mount;
                                                                                                 Vue$3.prototype.$mount = function (
                                                                                                                                    el,
                                                                                                                                    hydrating
                                                                                                                                    ) {
                                                                                                 el = el && query(el);
                                                                                                 
                                                                                                 /* istanbul ignore if */
                                                                                                 if (el === document.body || el === document.documentElement) {
                                                                                                 "development" !== 'production' && warn(
                                                                                                                                        "Do not mount Vue to <html> or <body> - mount to normal elements instead."
                                                                                                                                        );
                                                                                                 return this
                                                                                                 }
                                                                                                 
                                                                                                 var options = this.$options;
                                                                                                 // resolve template/el and convert to render function
                                                                                                 if (!options.render) {
                                                                                                 var template = options.template;
                                                                                                 if (template) {
                                                                                                 if (typeof template === 'string') {
                                                                                                 if (template.charAt(0) === '#') {
                                                                                                 template = idToTemplate(template);
                                                                                                 /* istanbul ignore if */
                                                                                                 if ("development" !== 'production' && !template) {
                                                                                                 warn(
                                                                                                      ("Template element not found or is empty: " + (options.template)),
                                                                                                      this
                                                                                                      );
                                                                                                 }
                                                                                                 }
                                                                                                 } else if (template.nodeType) {
                                                                                                 template = template.innerHTML;
                                                                                                 } else {
                                                                                                 {
                                                                                                 warn('invalid template option:' + template, this);
                                                                                                 }
                                                                                                 return this
                                                                                                 }
                                                                                                 } else if (el) {
                                                                                                 template = getOuterHTML(el);
                                                                                                 }
                                                                                                 if (template) {
                                                                                                 /* istanbul ignore if */
                                                                                                 if ("development" !== 'production' && config.performance && mark) {
                                                                                                 mark('compile');
                                                                                                 }
                                                                                                 
                                                                                                 var ref = compileToFunctions(template, {
                                                                                                                              shouldDecodeNewlines: shouldDecodeNewlines,
                                                                                                                              delimiters: options.delimiters
                                                                                                                              }, this);
                                                                                                 var render = ref.render;
                                                                                                 var staticRenderFns = ref.staticRenderFns;
                                                                                                 options.render = render;
                                                                                                 options.staticRenderFns = staticRenderFns;
                                                                                                 
                                                                                                 /* istanbul ignore if */
                                                                                                 if ("development" !== 'production' && config.performance && mark) {
                                                                                                 mark('compile end');
                                                                                                 measure(((this._name) + " compile"), 'compile', 'compile end');
                                                                                                 }
                                                                                                 }
                                                                                                 }
                                                                                                 return mount.call(this, el, hydrating)
                                                                                                 };
                                                                                                 
/**
 * Get outerHTML of elements, taking care
 * of SVG elements in IE as well.
 */
                                                                                                 function getOuterHTML (el) {
                                                                                                 if (el.outerHTML) {
                                                                                                 return el.outerHTML
                                                                                                 } else {
                                                                                                 var container = document.createElement('div');
                                                                                                 container.appendChild(el.cloneNode(true));
                                                                                                 return container.innerHTML
                                                                                                 }
                                                                                                 }
                                                                                                 
                                                                                                 Vue$3.compile = compileToFunctions;
                                                                                                 
                                                                                                 return Vue$3;
                                                                                                 
                                                                                                 })));
